These dragon wing studies are copied from Hanson and Burns' dragon drawing book. There are plenty of versions of dragon wings in the other books which I will study and copy. The books contain analysis of how the wings attach to the dragon's body and how many points of articulation are on them. There are also elements of texture and color which I am not currently considering. I think the ones on the top are the best-looking but are not sufficiently connected to the body. The middle ones, which seem to appear in many fantasy drawings, don't do much at all, connected to the body only by a strong arm-like limb.
A dragon is a big creature and its wings have to be big, but our universe's physics would never allow a traditionally designed dragon to fly. It is just too heavy and its wingspan too small to lift it into the air unaided. The closest this universe has ever come is the pterodactyl, which is pretty dragon-like if you look at the re-creations done by paleoartists. As for the fantasy dragons, remember what Anne McCaffrey said to me about their flight..."They levitate!"
Dragon wings are in pencil on sketchbook page, about 8" x 10", April 5, 2012.