It doesn't take too long to load don't worry. ^^
I really like your work! The first one is the best, that would be awesome to use as a background.
The Kung Fu Panda one is really great. XD I love Kung Fu Panda. The background is really funky.
The last two are a little too blurred for my liking, but that's just my opinion. Or do I mean out of focus? Something like that anyway ^^;