The first thing I notice when I visit your site is the logo in the top left corner of the page. It is quite hard to make out and perhaps a lighter colour would stand out better against the black. Also,on your left navigation links, is it supposed to be privacy police or privacy policy? Another thing, when you click on one of the wallpapers there is a lot of space until the end of the page due to the amount of links, maybe consider putting the links on the left of the page in categories so they don't take up as much room? Other than that, it's a good looking, clean site!
bro thank you for your review. Privacy Policy has been renamed . and Tag cloud has been removed so the amount of links is reduced .
Try re-coloring the logo to a lighter shade. Maybe text in blues over a white curved-corner rectangle could be used to keep it in-tune with the website. That's just over the top of my head though..
I think you have done a great job. I really like the site layout and functionality. However, as suggested by others, I think you should change the logo to a brighter color so that it can be seen.
Ditto on the logo but well done generally. I like that you've picked a niche within the wallpaper niche. No wading through endless categories that have no relevance - straight to the good stuff (if cars are your thing). For now I'd drop the car brands where you don't have a wallpaper such as http://www.hdcwallpapers.com/audi.html although it does mean the page is indexed. Maybe you could focus on having atleast one wallpaper for each.