You decide to copy Maple Story. Now you have two problems.

 

 

 

 

Srsly, though. Use people as a reference if you're drawing people; once you understand the nondeformed human, you can deform it to emphasize aspects. A few general points about the anatomy as of now, large head notwithstanding: the feet are too tall; legs are considerably smaller than the body. From what I can see, he has no groin region, and even eunuchs have hips. A neck would look dandy, and he should have knees, I'd say. Selectively omitting body parts is a slippery slope, unless you've a character that's obviously not human. (Master Hand, lawls.)

 

As for what you've now, it's not terrible, but you can definitely do some to improve it. Firstly: your shading is off a bit. You're coming dangerously close to pillow-shading in some areas, where you have one bulge shaded like a portion of a sphere and the extra area is filled with gradations of brightness, lightening towards the center. This happens on the lower part of the head and on the legs. You also tend to darken things next to your outlines regardless of actual shadowing, like on the distant arm and on the pants.

 

Another small issue is that the chest and feet look too rounded. A male chest is generally closer to a plane or two than two spheres (what you basically have now, as indicated by the small highlights in the center of the midtone-filled area), except in the case of manboobs, when you might have two rounded and stretched cones, approximately. As for the feet, they connect to the legs with a diagonal line of shadow cast by... what, exactly? Some ankles, implied at least, would help the legs a long way, and if you look at feet, you can see they're more like a heel sphere connected to a cylinder at the ball of the foot than the ellipsoid chunks you have now. You can argue for "stylistic choices," but you need to understand the subject matter well to make a good choice about how to render it.

 

 

 

 

Whew, long post. Don't be scared away if it's oppressively wordy; just try to fix one or two things and show what you get. Good luck.