Direct download: http://www.deviantart.com/download/192121043/wallpapers_for_windows_phone_7_by_vansoaked-d36dtjn.zip
After searching and searching for wallpapers that met my standards for my Windows Phone, I have collected some and made a pack so I could share it with others. I didn't make any of them, I just scaled/cropped them down to the exact resolution for WP7 and enhanced a handful of them. Enjoy all 70+ high quality wallpapers for you Windows Phone!
Also, here is a little tip when viewing them on your Windows Phone. When going through them one by one, they are a tad lower in quality(mostly just in sharpness). You have to double-tap the image to see the original quality. If you've double-tapped, the "..." will not be shown on the screen. If they are showing, that means you aren't viewing their original quality. And when double-tapped, you can't slide over to the next picture, you can only view them.
tl;dr double-tap when viewing an image to see the full quality of the image.