Production-ready AI prompt script for creating personalized festival posters with advanced LLM orchestration, bilingual support, and cross-platform compatibility

A sophisticated AI prompt engineering solution that transforms any LLM (ChatGPT, Gemini, Copilot) into a personalized festival poster generator. This project demonstrates advanced prompt engineering techniques including:

• Conditional Logic Orchestration: Dynamic Q&A flow with context-aware branching
• Cross-Platform Compatibility: Single prompt works across multiple AI platforms
• Cultural Authenticity: Bilingual support with culturally appropriate defaults
• Production-Ready: Input validation, error handling, and comprehensive testing

• Immediate Start: Auto-executes when loaded (no manual trigger needed)
• Context-Aware Branching: Adapts questions based on previous answers
• Smart Variable Substitution: Dynamic content generation
• Conditional Logic: Platform-specific execution paths

• 8-Question Flow: Optimized for clarity and efficiency
• 6 Primary Color Options: Expanded palette for customization
• 5 Accent Color Options: Rich visual combinations
• Regional Art Styles: Support for traditional Indian art forms
• Multi-Identity Support: Personal, corporate, and anonymous options

• Bilingual Greetings: Hindi (शुभ दीपावली) and Bengali (শुभ কালী পূজা)
• Mandatory Visual Elements: Ensures cultural authenticity
• Festival-Specific Presets: Diwali, Kali Pujo, or Both
• Traditional Art Styles: Madhubani, Pattachitra, Alpana, Warli, Kalamkari

• Input Validation: 50-character limit enforcement
• Error Handling: Graceful degradation for invalid inputs
• Cross-Platform Testing: Validated on ChatGPT, Gemini, Copilot
• Comprehensive Test Suite: 15+ test scenarios included

# 1. Copy the prompt file
Diwali-AI-Poster-Creation-Prompt-v4.md

# 2. Paste into your preferred AI platform
ChatGPT, Gemini, or Copilot

# 3. Follow the interactive Q&A
8 simple questions → Get personalized poster

# 4. Done!
High-resolution festival poster generated

┌─────────────────────────────────────────┐
│  System Prompt (Immediate Start)        │
└──────────────┬──────────────────────────┘
               │
               ▼
┌─────────────────────────────────────────┐
│  Q1: Platform Selection                 │
│  └─→ Branch to Script A or B            │
└──────────────┬──────────────────────────┘
               │
               ▼
┌─────────────────────────────────────────┐
│  Q2: Festival Selection                 │
│  └─→ Load Festival Presets              │
└──────────────┬──────────────────────────┘
               │
               ▼
┌─────────────────────────────────────────┐
│  Q3-Q8: Customization Questions         │
│  └─→ Collect user preferences           │
└──────────────┬──────────────────────────┘
               │
               ▼
┌─────────────────────────────────────────┐
│  Generate Final Prompt/Image            │
│  └─→ Apply all selections               │
└─────────────────────────────────────────┘

1. Platform Selection → Choose execution path (ChatGPT/Copilot or Gemini)
2. Festival Choice → Diwali, Kali Pujo, or Both (loads presets)
3. Identity → Person, Anonymous, or Company/Team
4. Primary Color → 6 culturally appropriate options + custom
5. Accent Colors → 5 complementary combinations + custom
6. Art Style → Traditional, Modern, Watercolor, Mandala, or Custom
7. Regional Style → Optional traditional art forms
8. Signature → Context-aware (adapts to identity choice)

• Greeting: Happy Diwali (शुभ दीपावली)
• Elements: Glowing diyas, kandils, rangoli patterns, festive night sky
• Mandatory: People celebrating (families, children, gatherings)
• Colors: 6 options (Festive Maroon, Deep Blue, Royal Purple, Rich Orange, Deep Green, Elegant Gold)
• Accents: 5 options (Gold/Silver, Orange/Fuchsia, Emerald/Gold, Purple/Magenta, Copper/Bronze)

• Greeting: Happy Kali Pujo (শুভ কালী পূজা)
• Elements: Red hibiscus flowers, Alpana patterns, divine atmosphere
• Mandatory: Ma Kali's face with red tongue (prominent)
• Colors: 6 options (Deep Red, Midnight Blue, Jet Black, Crimson, Navy, Charcoal)
• Accents: 5 options (Red/White, Gold/Red, Silver/Red, White/Gold, Crimson/Gold)

• Greetings: Both Diwali and Kali Pujo
• Elements: Harmonious blend of both festival elements
• Mandatory: People celebrating + Ma Kali (minimum shown)
• Colors: Combined palette from both festivals
• Accents: Mixed combinations

• Create personalized Diwali/Kali Pujo greetings
• Share with family and friends
• Customize with names and messages

• Company festival greetings
• Team celebrations
• Brand-appropriate designs

• Anonymous festive wishes
• Universal appeal
• No personalization needed

User: [Pastes script]
AI: Hello! Which AI platform? A. ChatGPT/Copilot B. Gemini
User: A
AI: Great! I'll ask 8 questions to create your poster.
     Which festival(s)? A. Both B. Diwali only C. Kali Pujo only
User: A
AI: Who is this for? A. Person B. Anonymous C. Company/Team
[... continues through 8 questions ...]
AI: Thank you, Priya! Here's your poster.
     [Generates image]

User: [Pastes script]
AI: Hello! Which AI platform? A. ChatGPT/Copilot B. Gemini
User: B
AI: Great! I'll ask 8 questions to build your prompt.
[... continues through 8 questions ...]
AI: Thank you, Priya! Copy this prompt and paste it back:
     [Provides formatted prompt]
User: [Pastes prompt back]
AI: [Generates image]

• Q8 Signature: Adapts based on Q3 identity choice
  • Anonymous → Generic festive messages
  • Person/Company → Name display options
• Festival Presets: Loads appropriate variables based on Q2
• Platform Branching: Different execution paths for ChatGPT vs Gemini

• 50-Character Limit: Enforced on all custom inputs
• Smart Rejection: Clear error messages
• Graceful Handling: No crashes on invalid input

• Mandatory Visual Elements:
  • Diwali → People celebrating
  • Kali Pujo → Ma Kali's face with red tongue
  • Both → People + Ma Kali (minimum)
• Bilingual Support: Native script greetings
• Traditional Art Styles: Regional authenticity

• Bengali Alpana: Traditional floor art patterns
• Pattachitra: Orissa scroll paintings
• Madhubani: Bihar folk art
• Warli: Maharashtra tribal art
• Kalamkari: Andhra Pradesh hand-painted textiles

Comprehensive test suite included: SCRIPT_VALIDATION_TEST.md

Test Coverage:

• ✅ Platform selection (ChatGPT vs Gemini)
• ✅ Festival presets (Diwali, Kali Pujo, Both)
• ✅ Identity types (Person, Anonymous, Company)
• ✅ Color options (6 primary, 5 accent)
• ✅ Art styles (5 options)
• ✅ Regional styles (custom input)
• ✅ Conditional Q8 logic
• ✅ Mandatory visual elements
• ✅ Input validation
• ✅ Newline formatting (cross-platform)
• ✅ Final generation (both platforms)

Contributions welcome! This project demonstrates:

• Advanced prompt engineering techniques
• Cross-platform AI orchestration
• Cultural sensitivity in AI applications
• Production-ready prompt design

How to Contribute:

1. Fork the repository
2. Create feature branch (git checkout -b feature/amazing-feature)
3. Commit changes (git commit -m 'Add amazing feature')
4. Push to branch (git push origin feature/amazing-feature)
5. Open Pull Request

Attribution License - Simple and permissive

If you use this in any way, please:

1. ✅ Acknowledge: Arjun Ghosh
2. ✅ Link back: https://github.com/arjunghosh/Diwali-Kali-Puja-AI-Poster-Prompt

Example:

Created by Arjun Ghosh
Source: https://github.com/arjunghosh/Diwali-Kali-Puja-AI-Poster-Prompt

Arjun Ghosh

🚀 Founder & CEO - Loyla.ai
🎯 Applied AI (Agentic-AI & Gen-AI) Consulting & Solutioning

Connect:

• 📧 Email: [email protected]
• 💼 LinkedIn: Arjun Ghosh
• 🌐 Company: Loyla.ai

• Traditional Indian folk art inspirations
• Bengali Alpana and Hindi Devanagari typography
• Community feedback for optimization
• Cultural authenticity advisors

• 🐛 Issues: GitHub Issues
• 💬 Discussions: GitHub Discussions
• 📧 Email: [email protected]

This project showcases advanced AI/ML engineering capabilities:

• ✅ Conditional logic orchestration
• ✅ Cross-platform compatibility
• ✅ Dynamic variable substitution
• ✅ Context-aware branching

• ✅ Comprehensive testing
• ✅ Input validation
• ✅ Error handling
• ✅ User experience optimization

• ✅ Bilingual support
• ✅ Cultural authenticity
• ✅ Regional customization
• ✅ Traditional art integration

• ✅ Platform-agnostic design
• ✅ Zero dependencies
• ✅ Immediate execution
• ✅ Scalable architecture

Made with ❤️ for the Diwali and Kali Pujo community

Demonstrating AI excellence through cultural celebration 🪔✨

Repository: https://github.com/arjunghosh/Diwali-Kali-Puja-AI-Poster-Prompt
Version: 2.10
License: Attribution License