Design work for wesbite

Visit the site [login to view URL] I am looking for replacement graphics for the 3 colorful squares on that page. They must all be different, but of a similar style and color palette. These are the parameters from the client: "I’d love to see much more color. Maybe we could have concentric squares in the spots, but with vivid blues, turquoise, green, yellow and some dark pinks. But it doesn’t have to be squares ??" it could be other shapes with nice colors running through." Some more comments from the client: " ...look for some other colorful, interesting graphics to put on the home page (instead of the Albers posters). We feel that the blocks of color are a little blah." This job will likely require multiple mock-ups.