Not bad, not great. It was fun but a bit on the easy side. Most of the levels didn't seem so much like puzzles as random hashes of bricks. A couple of them were good though.
The main reason for my review is to bug report. I had initially experienced the same problem as Lord Kieta. Upon trying a few things I found that if the game is started with the browser zoom (magnification) at anything greater than 100% the play button does not appear (on screen) and cannot be viewed without closing the game and resetting the browser zoom.
I know that many games do have issues with the browser zoom so I am not holding that against you score wise. I just didn't find the game to be anything overall new or interesting. You don't have previous submissions so I can't award any points for improvement. This is also not to say that there is anything particularly wrong with the game. It is just very... average. And being as such I am giving it an average (though slightly above) scoer 3/5 7/10.. Keep up the good work and keep trying.