Yeah I've noticed alot of people bashing the OP instead of giving good criticism....or doing both. No need to bash the OP. Like the post above me at least he is trying. And if anyone has anything against what I'm typing then feel free to respond with drawings of your own. I will be sure to bash your drawings as I know for a fact nobody on this forum is on my level artistically so if anyone has room to bash its me.
Towards the OP just keep practicing. I don't know how old you are but it takes experience and practice to get better. What you need to learn is proportions of the human figure and practice shading. I know you didn't attempt shading in this drawing but shading is one of the most important features of a drawing as it can make or break a drawing. If you're going for cartoon looks than focus more on line drawings as you did here, but if you want to move towards realism then shading is what you want to practice most.







