I really like the What's New Section at the top and how it kind of goes through all the different new wallpapers that you've added. Are you thinking about added a categories section that will easily let users navigate and find wallpapers?
a little on the bland side. Maybe put up a background, a little css customization. like the slider though.
Awesome design. But you used common menu bar. I think if you change menu bar and background color, I hope it will be more beautiful. Go on dude.
You should change the link colors from the default blue... and maybe use a couple fonts for your content - simple is good, but you need to improve the user interface a bit with the fonts and font colors first. The site works good from the functionality point of view. Just my 2 cents Chris