Realistic Half-Wall Portrait

I need a large, realistic wall painting based on a photo of people. The painting will cover half of a wall.

Requirements:
- Convert a photo into a realistic painting
- Paint on a large canvas or directly on the wall
- Use high-quality materials for durability

Ideal Skills and Experience:
- Proven experience in realistic portrait painting
- Portfolio showcasing similar work
- Attention to detail and color accuracy
- Ability to work within my budget

Please share your portfolio and a timeframe for completion.