Really beautiful artwork and palette, very impressive stuff! The mechanics of movement all worked well and were fun to use, and I proceeded to the finish without the need to read your guidance about what to do. The enemies were creative and their behavior worked well. The in-game instructions were clear, the UI is very smooth, and the character insets look great! Very cool all around!
Feedback that I hope might be helpful: I had a hard time figuring out which surfaces were solid and which were background art, as surfaces weren't set off from the background (as, e.g., by a special surface color or similar prompt). Within a single tree, some of the flat tree-tops were solid and others weren't; some log-bridges were solid, others weren't, etc. A visual cue to the player would be helpful for surfaces, and/or a more consistent pattern of which things are solid.
The dash bar also seemed to be infinite for me; I suspect this was meant to drain somehow when you dash? Because of the distinct color overlap of the green/blue orbs and the green/blue dash bar, I figured there would be a relationship of those...
I was never able to make it to the highest area of the first world. I could see it up there, and it seemed like the hanging logs on the left were the way up, but I could never get it -- I'm curious, was there a way up?
Awesome work!!