Yes,I've seen better art than this but I don't think it's that bad who knows maybe this is the artists signature style ¯_(ツ)_/¯.
And a lot of manhwas that are adapted from the novels doesn't follow the novels cover art.
Honestly it's too cutesy for this kind of plot I feel
I wouldn't say this artstyle is bad,, just very simplified. It wouldn't surprise me if the artist(s) of this manwha were strapped for time in drawing the panels so they overall simplified the character designs in order to save time :)
I'm not enjoying this.. the story is good,but the art is crap(sorry) ...i mean look qt the novel's cover...its gorgeous and they choose to publish that art for the manwhua ....not for me