Draw a custom robot head, with unlimited edits

I am looking for a skilled designer to draw a custom humanoid robot head with unlimited edits. The ideal candidate should have experience in creating highly detailed designs with vibrant colors.

Style: Humanoid

Level of detail: Highly detailed

Color preference: Vibrant colors

Other requirements:

- Unlimited edits until the design is perfect
- Ability to work within a timely manner
- Strong communication skills to ensure the design meets my expectations
- Portfolio showcasing previous similar work is a plus.