I can see a good effort has been made! A shame about a couple of the game's flaws.
Jumping is momentum based, which makes the second level difficult to start. The graphics are nicely done, it's a shame its been stretched. Repeatedly placing down the smaller sprite might have looked better. There is also the enemy that moves way too fast on the second level, but that's easily solved by slowing it down.
All in all, a fun first level and good concept!