I like the skybox and the somewhat meeple style of the player character (and fish!), but I am unsure how the game plays… I see the fish get high up in the air; if I try doing the same, I am stopped at some point. This is rather weird.

Is there some reason why you chose left-right for going up-down? The coordinate system, for example? These controls do not seem intuitive at first sight.

I see this was mainly a first attempt because you lacked experience; maybe you can still enhance the game up to what you had in my mind. :) And do not forget you can write (either in the game, on the game page, or in comments) what you intended and could not achieve!

(By the way, just putting here that my game is pending until I get the submission form.)