So I did read the spoilers and I'm skimming through a few chapters at a time. Around ch60s the arts starts to look weird. The faces are fine, though they look like dolls, but if you stare too long you notice the proportions are off or their bodies/arms are angled weirdly. The hands, especially, look strange in a lot of panels, so I'm just skimming over the art by this point. I'm almost to ch100 it's so tiring to get through, but there's some scenes from the spoilers I want to see, and I hope the story at least got that far.
I loved the art style in the beginning and loved it for the first 100 ch, but then it got kinda tiring. This got worse in maybe the last 15 ch, and personally for me it was when the mouths in particular started to just look the same no matter what emotion they were trying to express sometimes,
Ch50
I don't know if it's the story or the art, but this is tiring to read. I'll probably look for the spoilers and consider whether to continue this or wait for season 4.