This was super interesting to play. I like the style, reminds me a lot of children's storybooks, but AI think it fights against the Rubik's Cube that looks pretty generic. Changing up the colours or edges might make it look more coherent.
I think at times it does get a little difficult because of the need to continuously spin the cube around, so having an option to give a hint or guidance, it would be useful. As for the spinning mechanic itself is well done, but the way the player interacts with the cube could be improved, for example, clicking to zoom in and out, and being able to drag to solve, rather than having to click buttons.
I think the biggest thing that would be important to implement is being able to jump rather than having it done automatically. I thought it was pretty awkward that I wasn't able to jump being a rabbit, and it might introduce some alternative ways of solving each puzzle.
Overall though, I think that this was a really cool way of approaching a puzzle that incorporated a Rubik's cube. It was really cute and had me thinking for a few levels^^