I like it
Obviously Tetris inspired. I like Tetris so I might be a bit one sided on this one.
I have several suggestions on how you can improve this. 1) You should probably make a free mode in which you can place as many random blocks on the platform as you can. The difficulty increases as you place the blocks. You can have a leaderboard too. If you make a leaderboard, Instead of basing the scores on the number of blocks or the height of the pile, I think it should be based on the number of singular blocks. 2) When you release a block from a high point, the view pans up suddenly centering on the falling block. I think it would be much better to center the view on the highest point of the pile or maybe zoom out if the space gets tight.