Arguably the best thing your l have drawn so far. The pecs look very natural and you added good attention to detail in the abs they look p 3d despite not being shared. The head could use some improvement as well as the gesture but I've been drawing for longer and still haven't dominated gesture so no biggie there. Also when it comes to tagging your drawings the gender and the place of the piece could be added as tags as well as of sfw or NSFW.

That's all keep the good work