I see a lot of puzzles but it wasn't obvious there was a first button hidden in grass, so maybe some guide would help.
I would like to see "harder" puzzles, not in the way of replaying big parts of the level again but in parts of making you click "Aha! I see now what can I try to solve it". And it would be cool to be able to pick any level for the game jam (since some levels are hard for the sake of hard in my opinion).
UI works differently for screen resolution (I've expirienced overlaying buttons) for resolution 3840 x 2160.
And for atmosphere... there is something, I like that there is dirt/rocks around, and ambient clouds in the background it looks cozy.