I agree with previous comments. Lose the food items and people. Blend the colors in a gradient to eliminate hard line transition, even the yellow corner drop along the side of the hull. Interior store design would call for hard edges, but on a boat I think it needs more "blurred blending" for a lack of a better expression. Ask them for more ideas in the way of contemporary design.
If you want to highlight "spicy" as in their chicken, put a red-hot chili pepper somewhere, the red might be a nice contrast color to add. Curious though, the corporate colors appear to be yellow, red and blue, with purple. Don't see the connection to green currently found on the hatches. http://popeyes.com/index.asp
Whatever we might think, the boat is indeed a billboard to support a brand name and image. On a state-of-the-art offshore performance boat, I think those which display contemporary, clean, short/sweet and to the point graphics are most recognized. They should be easy to read, go larger with the Popeyes name on the side.
Good luck with the sponsorship, looking forward to seeing the new boat out there next year.