I have a blog for nook wallpapers that I started a couple of weeks ago...check it out here « Tattfae's Nook Wallpapers sample
You should post your link in the general discussion of the forum as well....I think any of these wallpapers can fit any tablet. I got the lion on my 5.3" galaxy note, it looks great!
Good idea Gloria, I've created a link in the Android Tablets Graphic section. http://www.androidtablets.net/forum/android-tablet-graphics/43452-nook-wallpapers.html