Hey, no matter what anyone else says, I think your levels are very interesting and clever. Although it takes skill to develop friendly levels, it also takes skill to find extremely hard but doable jumps and make them work in interesting levels, which you did. If you want to make hard maps, that's your choice, but since I only have the XBLA version, I really hope these aren't deemed to hard to make it to the Teh Internetz
And about the actual levels, I thought ice trucker was very interesting and unique, and the background for that level was awesome. I also liked your levels where everything is a different color. Both the meat boy and alien levels were cool touches as well. The only negative I would say is forcing the glitch jump on the last level is kind of annoying. Like I said, I only have XBLA so I can't try it, but it seems to me since that glitch rarely happens it would be tedious for a jump like that. So yeah, keep up the good work and awesome backgrounds.