and just because I was an idiot and spent half the night piecing together this image from about 4 diff images... (idiot because when I set about doing the collage for the bottom half of the cover, it turned out I didn't need the Gower at all. Tho I also removed a flying car that just looked weird stuck between the Doctor and Rose.)
(Note to the curious: whoever made this New Earth wallpaper? Got a touch sloppy (the hard edge next to Rose being the most obvious PhotoShop error). And I never did dig up the image he used of the Gower Peninsula, so I ended up finding a new one to splice in over the wallpaper, to hide Tennant's legs...)
Thine Own Self by calapine
All the covers thus far can be found in the cover index or on better with two.