Feedback for JD's levels

[JD]

Well, for starters, here is basically my first series:
http://knucklecracker.com/creeperworld/mapdownload.php?id=364
http://knucklecracker.com/creeperworld/mapdownload.php?id=366
http://knucklecracker.com/creeperworld/mapdownload.php?id=480
-many more series to come!-

The first, "The Flood," was the the second level I ever made.
My focus on levels are really overall creativity (and to have correct grammar!  ::) )
So, if you could give me general feedback, that would be great!
Also, don't be afraid to comment on any other of my levels. I am pretty new to this kind of thing, and am not actually even good at the real game...  :-\ which is why I have fun making my own levels!
So I hope you have fun with them!... and don't blame me if they are too easy!  ;D