It's been done before....but:
Block breaking games are a concept that have been done before but I did enjoy your graphics very much. The "faces" on the blocks were a very cute twist...the yellow ones on the first level had me smirking but the ones on level two made me laugh. The faces alone made me play it a lot longer than I normally would have, it was fun to smash blocks that have a look of terror on their faces. :D
Nice.