Finish Existing Start of Realistic Unity Mobile Snowboard Game Demo

I'm looking for a skilled Unity 3D developer to create a small, realistic snowboard mobile game demo.

Requirements:
- Realistic simulation mechanics
- Tilt controls for user input
- Detailed physics for realistic movements

Ideal Skills:
- Expertise in Unity 3D
- Strong background in physics-based game development
- Experience with mobile game controls, particularly tilt mechanics
- Ability to create high-quality, realistic graphics

Please provide a portfolio showcasing similar work.