Anatomy help on Manga work

[hallow cloak]

im having alot of trouble showing a student sitting on these type of chairs. can anyone guide me a little? i wanna show just someone sitting normally

[sly anchor]

Im not sure if this is fine or you need a direct frontal view but it’s as if your drawing a person sitting on a chair just with one hand on the desk so it’s better if you have problems drawing it to simply change the perspective to the point where it’s the most believable