It's nice but here's some critiques, first of all i can barely even see his body, i don't even know which angle his body. I suggest that selanjutnya time anda have to make it lebih noticeable. detik his head shape, it looks kinda wonky so try to use sketch line for future references. And last, anda should try using a darker pencil, a pen, atau a marker, for the outline if you're coloring the piece because if anda color it (with that style of coloring) without any outline, it kinda decrease the quality of the picture, but that's just my taste.
here's a recourse if anda wanna improve your skill:
link
