The UX is great, as is the concept; it was fun interacting with the fish. The design, your use of colours, and the details in the scenes are in keeping with the theme. The visuals encourage user interaction. You maintained good UI consistency within the different scenes well-designed and familiar button types; even without words, I knew what to do and what would happen. The functions work correctly, and I received the expected feedback immediately. My only thought was the location of the rotate buttons. Great Job!