Wow that’s a lot of polish! I had a great time with the art.
I noticed that in the late-game levels, shapes overlap each other quite a lot (and in the last few levels, completely), making it uncomfortable to tell what the target sizes are.
I rather liked the challenge of fitting my cursor to the shape - just not the challenge of figuring out which shape belongs to which.
The gameplay reminded me a * lot * of the “Pose Mii” minigame from “Wii Play”. So there was nostalgia in it for me as well. :)