It's nothing that hasnt been done already but that doesnt make it bad. I liked the picture you used, I liked that the game actually worked.
I would suggest making some way to score the game, maybe a race against the clock or something. More pieces? Have the pieces lock in to place?

Oh noes I caught the homogays!
Heh nice job you made me think this was gonna be manly.
I'll give you 2 star because puzzles are pretty common and...
mazes are better than puzzles are- 20 year old male with no life

Kind of pointless.