I am not a drawer or anything but I got bored and decided to draw an image I saw. There is much shadow in the image that is why it looks out of place. I tried.
Awesome for someone who doesn't draw, poor for someone who does draw. But as long as you like it thats all that matters.
My advice to you, sir: keep practicing. I do like the use of hatching, though. And, your use of line on his jaw is interesting. I just feel like it could have turned out feeling a little more inspired. But, keep it up, pal.
Shit, last time I tried to draw Marley I ended up with something resembling Joseph Merrick. Don't drink and draw, kids.