I couldn't really understand the way the puzzles or how the Sunflower attack worked so I wished there was either a tutorial or a slightly better introduction to your powers. In my playthrough, I stumbled into the solution for the first room, which made me progress without actually knowing how the systems worked. However, I find the idea of planting flowers to solve problems/riddles a good idea, especially if you find different ways of using the Sunflower power. Had no issues using the interaction or item system.
The art and color palette are fine, and personally, I think that the “rough around the edges” pixel art style plays well into the “fractured mind/missing personality” theme of the story. I especially like the out there and abstract character design.
The music is ok, but it could use a bit more variation and maybe a slight decrease in volume.
As a whole, I think the game is built on an interesting premise and the story has potential, but needs a bit more work to have an engaging experience.