Sketching Reference Images

Whenever I have a subject to draw, and I have time to practice, I break out some reference images, and go at it. "Ape-ing" what I see, learning from the construction, and the lines on a well known subject. Drawing someone else's images helps to understand the original artist, and can add variety to your repertoire of "go tos" when drawing different elements and components of a composition.  I was looking for a silly looking person in a suit or a tuxedo, then I thought of Wimpy! So cool to draw these legendary characters. Well, the top hat in the middle of the page is original. :) Practice, practice, practice. Oh, and thanks to all the good folks that made those images available on the web. You guys rock!
PS-Some credit later found for the reference images. The top-left magician is clipart, the center pipe person reference image was of an artist unknown sketch of Jacques Tati, as Monsieur Hulot (comedian), Wimpy's reference images courtesy of google search.