[Supaman771]

The second one is the only one I actually liked, and took a second look at.
But still through that you could use a little more creativity in the level itself. Without the images the level should still look good, I don't see that happening with fill tool floors and mundane outlines showing off a lack of creativity or time detailing. (This is the same throughout most of the inside levels)

Keep honing your skills, and adapt your own style. I see a total change in styling between levels. Nothing that would make me think 'Oh, Doc made this!' if I should ever see it used somewhere.