This game has an interesting idea behind it, but the movement feels uncomfortable and the game has no instructions as to changing size.

I think in it's current form, this game feels still to "raw", by the nature of being short and some Art and CollisionBox Weirdness.
Also please put your control schema on your store page or in the comments or smth.
I like the overall principle of a puzzel based on different abilities with different sizes, spezifically the water level was nice;
Conclusion: Solid Work for your first Game :)

Nice idea! I couldn't go through the 2nd level

You are allowed to update your itch page as long as you don't change your game.
No one is going to try something that looks so sketchy. Re-name it, and put in a description, add some screen shots, change the theme on the game page to either put in a background, or change the colors to match your game.