Nice visuals, interesting gameplay, like an inverted Doodle Jump!
But, I feel the jump acceleration and deceleration feels a bit too fast and the jumping is too random with no indicators, its very tough for the player to feel rewarded for planning based on the jumps.
Perhaps slowing down the jump frequency initially would be more accessible.
Adding indicators prior to the jumps would be allow players to plan before the jump.
Slowing the fall speed would also help allow players feel better about the control system