the art in these books are at the same time competently done, are completely incompetent.
for instance in this chapter, take a look at page 5 7 and 10 where they are 'struggling'
There is absolutely no sense of weight at all, there is nothing there suggesting its a stand still or even that he has the upper hand
then you get body language, where everything is an exaggerated 'look at me i'm tough and trying to exude it' pose but every one of them comes off as completely unnatural.
for the action, it constantly shifts from this guy is 4 times taller then the protagonist to possibly smaller than him
when his eye gets shot with the knife, notice that the guy is above, he is shot from below, the knife goes in from upward facing angle, however the wide shot implies that the mc was either significantly taller than the character, or that he was kneeling down when he was shot in the eye.
The artist has next to no talent for choreography so he cant plan out a fight scene to save his life, or for that matter have believable stances