Realistic Ocean-Themed T-shirts

I'm looking for a talented graphic designer to create a series of ocean-themed t-shirt designs. The designs should be realistic, featuring the following sea creatures:

- Shark
- Sea Dragon
- Manta Ray
- Octopus

The color palette should be vibrant and bold, capturing the beauty and excitement of ocean life.

Ideal Skills and Experience:
- Proficiency in realistic illustration
- Strong understanding of color theory, particularly in vibrant palettes
- Experience in t-shirt design
- Passion for ocean life and marine creatures