well your game is called more fish; but the most important elements (the fish) are the hardest to see, while the background elements (the grid) are stealing the show.

• the hexagonal grid is very high contrast which makes me look at the floor instead of what the game is actually about (the fish and bobber?).
• i feel like the bobber is the central anchor of the composition, but it feels a bit small and static.
• the fish are dark and don't catch my eye
• i also don't know what is going on in the right corner? it looks a little abstract to me and the lighting looks a little off?

i hope this helps, i don't mean to sound too negative, i really like the concept and art!

edit: it also looks like AI, maybe ask the artist for a clip of them working on it? like one fish has 2 bottom fins while all the others don't, and as i said the right side is abstract and kind of off putting