You've kinda goofed the proportions a lot, he's got a giant torso and lil legs and weird blocky arms.
I'd give it another go, try to go a bit slower while drawing and get the framework just right before you move on to the detailwork.
(Also: gah, pinterest is the aids of google image search results. It is impossible to link anything specific off it and of course it's almost exclusively what google's image crawlers pick up anymore. Garbage website I hope it dies horribly.)
