Five T-Shirt designs, commercial rights, vector files

I need 5 t-shirt designs. I will need them to be original, with commercial rights.
The main idea it's that the t-shirts are inspired by some sea creatures. The t-shirts will be white and I want the picture to be on the back or on the face of the t-shirt. I really want the picture to be like a watercolor drawing. For example I want a t-shirt with two sea clams (like a mermaid bra) . I would like the colors to be in shades of pink, purple, skin or turquoise, blue, light green, mint green. This will be just an example of a t-shirt design. I have another 4 ideas that I will be more than happy to share with you. If you think we can successfully collaborate, I am waiting for a reply.

Have a lovely day!

Warm regards,
Andreea