I liked it a lot!
That was pretty fun. I really liked the levels that moved or had moving things... like "Flood." I really didn't like that "Sea Squares" level, though. The space between the squares is really small and it doesn't look like the Gravoor (?) can even fit through it. Also, the snow-man level was like this. I realize this problem is meant to add to the difficulty of the puzzles, but when the creature's legs have to visibly go underneath the edge of the wall, it just seems sloppy and it can be frustrating. Also, if you could figure out how to make the death animation work, that would be great. Make sure it's very quick, though - because some levels require a number of tries... and a death animation which is any longer than a second would begin to get annoying. Hehe..
That said, I was surprised by the length of the game. Happily surprised. As I said, I liked it a lot. Great job! And potential front-page. =)