Despite the blurriness, it's hard to give feedback personally considering the style
First I would point that the palette seems similar to C64
It might be useful to look at other C64 games in regards to their color schemes
One thing in mind at the moment is the lack of contrast
Specifically the purple BG and tree's orange trunk tends to blend, and becomes apparent when the GIF speeds up
It has a strong cartoon simplicity about it -- and for that the bricks on the right with green details cause too much clutter
However the green BG which I believe is supposed to be bushes, might be too vague from a lack of detail