Ugh, this "artist" is really pathetic, in page 31 or 32 the mother body is half transparent.
I checked other manga from this person and they look well drawn, I'm guessing that is a group of people getting works under a single name to get more stuff or a single person that looks at this novel like easy money and delivers scribbles to the editor when putting effort in other stuff.
They aren't even fast and took some pauses between chapters, but not for quality.
Is the problem of the market being saturated with isekai and novel ports, editors hired anyone able to draw, no matter how much crappy or good, therefore some works that had good plot got a terrible artist working on it(and viceversa), this did not happen so much before 2016.
Add the fact that artists know that they don't need to get better to keep making a manga port, it just keeps the quality down.