I really like the gameplay. It's a good idea, it's fun and very challenging.
Characters are cute.
Blocks are not cute as playable character, and seem not to follow the same design.
Is the game finished ?
I had planned to move on to other projects now, with this project being complete, but with enough interest I may recreate the game into a more fully-fledged game with a story (the kind you get with platformers) and decent characters. Perhaps that would be a sequel if I ever went through with the idea.
Unfortunately, I am not an artist and am unable to create any decent artwork. This causes issues with all of my projects. For this game, I used royalty-free art assets from Kenney.nl but struggled to find matching blocks and characters that would suit the game.
Anyway, thanks for the feedback and I hope I've answered your questions.