I made a pretty big mistake here.
Basically, yesterday I did a quick sketch on a canvas that was half the resolution I usually use. The problem is that Clip Studio keeps that setting for the next file, and like an idiot I started drawing on the new canvas without realizing it was tiny.
So yeah, sorry about that, this piece ended up at a much lower resolution than usual. (which is a shame because i love the picture)
The only real fix would be to redo at least the lineart, but since it was meant to be a 1-hour challenge, I don’t really feel like going through that.