Nice work really. Seems like you did a great job with the proportions. I agree with the previous post about the shading on the face, maybe it looks a bit too light. Did you draw this with markers ? Now if I have to criticize then I must be nitpicking but when you take a closer look, some lines are a unregular and sometimes a bit messy, if you used markers then I understand why, it's hard to get your lines straight and smooth and you can't make any mistakes. These are details but I bet that if all the lines were smoother the overall aspect would look quite better, anyways, great work !
yeah I did it with markers because I like it messy and rough I could easily correct those mistakes digitally, but I'm lazy. I prefer to do my drawings traditionally, so seeing indirect lines seems normal to me, and I liked it that way. But even though I enjoyed looking at it, I always knew that I had to practice making smooth, straight lines. I'll keep practicing.
very nice drawing! I like the fact that you use lots of different kinds of shading. However, the main thing that I notice that could be improved is the shading on the face... compared to the rest of the drawing, the shading is barely noticeable because of its lightness. You may want to make that shading a little darker, at least around the edges... but that's just a suggestion~