I don't think they're horrible, but the early pages of my comic are certainly much simpler, especially in terms of toning. As I've gotten faster at page production, I've been able to be more specific about character shading, environment details, texturing etc. So when I look back at old pages, they feel a little flat by comparison:
(Old page from late 2014 on the left, new page from ~July on the right.)
Most of all, I think my old pages lack the confidence of the newer ones, which is to be expected. It takes a while to get a feel for how you want things to look, especially the characters. It took me about a chapter and a half before I really knew how to consistently draw the MCs.
I'm not going to re-draw those old pages, though I'll probably go back and add some extra shading and fix some wonky character art when I compile everything into a volume 1 book.