I just randomly decided to practice dragon wing anatomy, herp de derp. I've always had trouble with them, so practice is good. xD
To anyone that struggles with them as I always have, try to image the entire wing as a hand, rather than a random limb sticking out with stupid little sticks to hold the sails. That claw that sticks out at the top of the joint is the "thumb", and the long bits of flesh that hold the sails are the "fingers."
Since they are basically hands, they should connect like a hand does. So imagine that what you are looking at IS a hand. (with only three fingers for the right one, lol.) Now hold up your left hand and separate your fingers so that your thumb and fingers are mimicking the pose shown here. Now you get a general idea of where the digits will be placed.
Also note that the sails need to be LARGE. Dragons aren't light little humming birds-- they need GIRTH to their sails. In fact, a dragon's wing anatomy makes much more sense when it connects to the rump/tail, NOT when it concaves back in near the shoulder.
How do you know this for sure?
Well, what does a dragon's wing remind you of? Bats, right?
Well, where does a bat's wing sail connect? Does it curve back in under the armpit?
No, no it does not.
BAT WINGS:
http://susano.tripod.com/images/BAT4.GIF
http://www.ucmp.berkeley.edu/vertebrate ... atwing.gif
http://cache2.artprintimages.com/p/LRG/ ... gascar.jpg
It's also good to have that little sail BEFORE the joints. It makes them more aerodynamic-- and it's just overall more visually pleasing, if you ask me.
Making a sail out of the thumb is personal preference.
Here's an excellent detailed muscle anatomy of a western dragon to top it off:
http://ersbethshadowsong.deviantart.com ... 8#/d3iy3c7
And to those that don't want to compare to a bat's wing because you think dragons can't be related to mammals, then what is your excuse for pterodactyls?
http://www.michaellandia.com/resources/Pterodactyl4.jpg
Again, they also demonstrate the enlargened sails.



