Thanks for the feedback!
Yeah, I think the actually-making-a-snake part could use some graphical and audio feedback improvements - maybe have a "lock choice" button that makes it start actually constructing the snake component so that it feels more like you're actually constructing a snake.
Regarding the art, I've looked into it a bit more and I think I messed up with mixing different resolutions of pixel art, which is why it looks so weird - the columns, walls, background, and a few miscellaneous decorative bits are scaled up, while everything else isn't.