Genius combination of the theme with part of Alice in the Wonderland. Scaling character make sense that way.
I would make jumps less pixel perfect. It's anoying to miss last jump just because player jumped a little bit earlier. Either make platforming easier or make player collider bigger, so player can make a jump he would otherwise missed.
But owerall fun game, made me smile a lot when I got one big arm or head and rest of the body normal.