My first pages were almost exactly a year ago, and I actually don't dislike them as much as I thought I would. The backgrounds were amateurish, but characters and poses still aren't that bad, and there's no a significant difference in style between them and the latest ones, in the sense that you look at them and go "oh yeah, there's the art style improvement". (This actually makes me feel a little bad, that I've been drawing for a year and haven't seen dramatic changes lol)
However, I think the level of polish between 1st and last pages has drastically increased. Pages with similar subject matter below, with the first drawn ~11 months before the second; there's much more focus on directional lighting, backdrops, and dynamic panel layout in the second page.
If I actually get to the point of printing this comic as a standalone book, I might go back and retouch some of the panels on the first few pages I'm not entirely satisfied with, but before then I just accept that the oldest pages are a little shaky and move on.