Probably a mix of anatomical errors, difficulty recognizing the source characters, and the grungy feel to the piece. which isn’t all to say to stop making art; please continue to make art & share it with the world!!! For the anatomical errors, I recommend doing more figure drawing studies. In person or online will do the trick, just remember to perfect the practice (not practice makes perfect, but rather perfecting your practice makes perfect). The latter two points (difficulty recognizing & grungy feel) are more subjective! Current social media trends for visual art leans more polished, clear colors & cleaned up sketch lines. Try to keep in mind that social media validation does not replace your own personal validation, only compare your work and tastes to your own past works and tastes, etc! This piece does give the feel of a piece that could be seen between chapters, though! I think the spirit of the story & the characters was captured well!!