Design for Product Categories

I need to design graphics/images for my new website ??" [login to view URL] The images need to be designed for the Main Categories and Subcategories. At this time, I have included dummy images for the home page to give you guys an idea of how the page looks. In all there are a total of 28 categories that will need images/graphics. I would like you to design the images based on the overall visuals of the page. It really needs to be visually appealing. I am open to removing the name of the category from the display and including it as a part of the image. So basically it would look like TILES. I would like to see how this looks, so when I hire your services- you will need to give me an option. I would like this to have a WEB 2.0 feel, and use earth tones. If possible, I would really appreciate it if you could give me a sample for 1-2 categories. Please share your previous work when bidding. Can you please let me know what I can do to make the top banner more visually appealing? Do you have any ideas; I would like to design the top banner as well so that it goes well with my logo. Example of theimages/design ??" [login to view URL]