I don't know why the pancake picture is well accepted except that it was drawn by a Japanese artist. I wouldn't have accepted it personally, even though it is superbly drawn, but I don't care enough to do anything about it. Landscape images are sort of grey area as well.
It'd just like to refine my argument. People should not go and upload all the cool pictures they find on DeviantArt. But I think we can make some exceptions for exceptional quality. A few awesome Dead Space pictures are not going to hurt anyone.