Cute graphics, good core mechanic, especially for a first game. For feedback I would say:
- The game ramps up a little slowly, you could cut a couple of the first tutorial levels to get onto more interesting gameplay. This could be applied to movement speed in general.
- The music got a bit much after a while and I had to turn it down.
- The movement is nice and hefty when big, but when small it keeps some of that behaviour, so feels sluggish, evident when moving around the maze. I would say when small you would want to move to more reactive movement.
Good job!