I draw as well, but I never have been schooled in arts, it always was my passion. I am since a year trying to get some structure and learning how to caricature from a book written by Tom Richmond, and since then I am working hard to upgrade my work. It is the observation which I had to (and still have to) drastically improve, as most of my past works were mainly via the mind`s eye. But when I see works of talented people like you it gives me a big boost, it really is inspirational!