Realistic Boston Marathon Course Drawing

I'm seeking an artist to create a detailed, realistic drawing of the Boston Marathon course. The artwork should include:

Key Landmarks:
- Start line and finish line
- Heartbreak Hill
- Famous buildings along the route
- Mile markers
- Key cheer zones
- Important statues along the route

Graphics Detail:
- High detail with textures and shading

Ideal Skills:
- Proficiency in realistic drawing
- Ability to incorporate multiple landmarks with high detail
- Strong understanding of textures and shading

Please provide samples of similar work.