Apparently this is such a mindboggling issue, let me enlighten you:
It's not an unusual thing for the art quality to drop as the story progresses.
The artist starts drawing a good while before the first chapters are released, so they are semi-chill and put a lot of effort into the panels.
But inevitably the released chapters catch up and at that point they have to sacrifice the sparkly details to keep providing content at a similar rate.
Also, when you keep drawing the same shit over and over you're bound to start cutting corners to focus on the more important things, like actual story telling or drawing a huge pink dick.
Oops it got cut off-
I understand that there are deadlines to reach, however in this story where anatomy and smut are the main selling points, sacrificing the quality of the art is a very high risk for the series and it could drive people away because at the end of the day aesthetically pleasing art sells better, it's not a secret a lot of people don't even start to read some stories just because of the art style.
Also thanks I appreciate the time you took to explain it to me

Like TF happened to the art style??? I let this series marinate for a while and the art got so much worse, there's barely any consistency in the character design and the anatomy got defenestrated