Really? Then you should definitely compare panels from both seasons, there's a lot of anatomical inconsistencies. The author actually got way better at that in season 1 compared to the convience store manhwa but in season 2 it feels like Guwon's face keeps looking different each time also the anatomy is not as accurate as it was in S1, heck I'd say even the coloring is not setting the tone as well as it did in the first season, it's even starting to feel a little rushed

The art has really been incosistent with season 2.
Either the artist is struggling with their health or they got an assistant with a different artstyle or both?
The story has good plot, the art definitely used to amplify the story's plot, I feel like as you read the first season and the author's previous popular work you get an idea of their artstyle, I'd say it improved in this story but kinda went downhill in the second season, almost don't recognize Guwon, sometimes it feels like sketches that were not very well colored and put together as a chapter.
Idk I thought the art and the vibe we so spot on initially, it'd be better to preserve the work's quality by letting the author serialize at a slower pace.