Overall it's a neat platformer. I found the inconsistent art style and the non-instrumental music to prevent me from feeling immersed in the world. The story had me interested as it made me wonder if ants and cotton have some sort of real world relationship to one another, but the dialogues felt a bit longer than I'd like.
Overall I found the movement to be lacking for a game that's main focus is the platforming. There seemed to be invisible walls, having to hold a key to run felt a bit unnecessary, and pushing boxes was hard since I would seemingly automatically jump/roll over them.
Killing ants didn't feel as impactful as I'd like and neither did dying. I ended up dying several times to the spikes that move before you land and that made me rage quit the game. If your goal is to make a rageplatformer I feel that should be communicated in the visuals and dialogue of the game, since currently it looks more cutesy and the story almost feels like it's implying something scientific.
I think the vision of the game needs to be clarified and communicated more clearly, through descriptions, dialogue, music, and visuals. Overall it was a fun enough experience but I think the movement needs some work to get me to replay it more.