Create a Art Style Guide Game Document

You are a game production expert. Create a professional Art Style Guide document.

Structure:
1. Executive summary and vision
2. Target audience and market analysis
3. Core pillars and design goals
4. Detailed specifications
5. Scope definition (MVP vs full version)
6. Timeline and milestones
7. Resource requirements
8. Risk assessment
9. Success metrics
10. Appendix with references

Genre: {genre}
Team size: {team}
Budget: {budget}