I am so charmed by this sketch on so many levels. I love that it's a side-view instead of a front view, for one--and the way you caught the play of light and shadow on the arms, nose, shoes, etc really gives us a lot of info about the big blocky form as well as making it feel like a bright August day. The telephone pole and the trees do a great job of indicating the scale of old Paul there, too. Nicely done!
I agree with Katura....a wonderful sketch and everywhere you look there is something else to comment on. And so pleasing to look at too! It makes you smile.