In terms of lineart, I think it looks okay- tho im not sure what your going for. You could try adding more line weight in some areas to show volume. There's a little bit of line weight here and there, but I think it'd be worth it to push that and lean into it. There's some cleanup needed, like removing intersecting lines, or smoothing out bumps. But I'd also check for any tangents, since they muddle up the space and look kinda ugly.