Such vibes! I really loved the Hollow Knight / Gris feel to your main character's flowy design. Unfortunately I encountered an issue in which, when the game launches, there is no music or sound. I can't reproduce it today, but when I played a few days ago, when I eventually got back to the title screen (I can't recall now whether I finished everything or just died), the music and sound actually kicked in, and it was great. I just wish I'd had it on my first playthrough. With the dark palette, painterly background, and music, this game has a great feel.
Generally I found movement felt good; the only issue I had was with the wall jump. It felt like some of the gaps were too wide, or maybe I just wasn't using it correctly. Visually, your chosen colours had great, readable contrast and in combination with your UI, I found it easy to determine what to collect and what to avoid. I would love to see how this game develops visually given more time to make unique assets for the abilities and such, because the backgrounds and character art are awesome.
I did wish for a bit of story about your character to help me feel more connected to their quest, but as I said above, it still felt pretty clear what I should be doing, even if I didn't know what the motivation was.
Great work, will watch for updates :)