It would be nice to see some of the other Tetris shapes with their respective colors, not just the same shape for all roles.

3 out of 5 stars.

Okay.

あなたはもっと巨大な（の・もの・人）を作るべきです。
Translation - You should make them bigger/bigger ones.

5 out of 5 stars.

cool i really love your work you should consider becoming an artist

3.5 out of 5 stars.

you should do more colors and more shapes. if you can do moving ones. those are always cool.