I liked the levels and aesthetic. I think you have something interesting here. I would recommend to review the jump function. It seems there is a bit of delay from when you touch the floor and when you can actually jump. It feels almost like nothing, but in games for precision jumps, controls must be as responsive as possible. Also, I would recommend to add "coyote time" so it doesn't feel that unfair when you make a jump near the edge and you just fall. Also the wall jump feels weird, because you advance so little while doing it and combined with the jump delay sometimes you just keep jumping in the same place of the wall. Best of luck!