Wow this is a really well made puzzle game! Was just right my ally :)
The "aha moments" worked well, the visual language was clear, the blocks charming, the art style great, the level design had enough hidden tutrorials to show what's up and where, very good experience
The influence of Snakebird is evident and it's a great homage ^^
I did notice that the cloud level (with the bear) that could go to the ceiling had a small UI issue, where the pivot got lost in the part without a ceiling
Also when playing the first two space levels, they just got solved without me even understanding how they did, which was confusing, maybe making sure the player udnerstands the mechanics before would help there
Besides that it was overall more than great, not just for a game jam but overall. Played it in a sitting and had a blast! Please make more :)