This is my guide to dragon anatomy. It is not a traditional tutorial that shows you step-by-step, "here's how to draw this picture of a dragon", because nobody ever learned anything from that, and if they did it was from subconsciously doing what I'm skipping to here.
You see, a tutorial that walks you through but never explains doesn't teach you how to draw, it teaches you how to copy. To truly draw, you need to learn to See. Seeing is understanding how something works, so you can picture it in your head and understand how it all connects. For animals, this requires you to know how the bones work.
Thus, I've shown a reference, rather than a how-to guide. I've explained in detail, and hopefully by my explanations and good old observation, you'll be able to figure it out.
Give a man a tutorial, he'll fill a page. Give him a reference and he'll fill a sketchbook.
One more thing: practice. I took years to get this good. You won't get there overnight. Deal with it. Just keep trying.
Note: Should be antorbital fenestra. I keep typing anti for some reason.
Part 1: Basics
Part 2: Skull
Part 3: Eyes
Part 4: Basic Flesh
Part 5-1: Back Legs
Part 5-2: Front Legs
Part 6-1: Bat Wings
Part 7: Torso