Graphics are not good, but the game itself is worth 5 stars for fun! Mechanics are solid. Keep going!
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Sure, sorry for not having gone into more detail.
Generally the style is very cluttered, I would be careful with combining many bright colours and textures.
The itch page for yor game is hard to read because of patterns in the background and very playful text.
Less is more. Maybe make the background much more transparent or replace it with a simple colour and let the screenshots speak for themselves.
And ingame less textures and more into the direction of simple colours with different brightness values - because some colours "fight" with others. You can look up complementary colours. There are tools for picking good colour combinations: color.adobe.com, or have a look at the palettes on lospec.com.
Hope that helps!