My first modification of the dragon turns out to be a wyvern, what I thought to be front legs on the wings are just clawed wrists of their wings, dragons have four legs that are independent from its wings. Three plates are the distance required so the wings and front legs on ball joints do not interfere with each other, I used a green 2x4 plate plus two dark tan 1x2 plates to build up the torso that has eight ball joint plates. I made the front legs shorter and slimmer by removing the large 1x3x2 arch and using the just the smaller green slope, with two flower plates as support. I changed how the single claw is attached on the wing wrist by using black brackets, the dark green open clip tile sticks out too much. The expanded wingspan and longer tail balanced out this four-legged fire-breathing dragon. I love this brick-built dragon, the same ball jointed torso design idea can be applied to many other animals. In the latest version I have added two more ball joints to the wings, added plates to reinforce the joints and wings. There are now 10 ball joints and 9 bar joints on this dragon! The wing joints allow the wings to have many different angles and sweeps: - Gull Wing - Inverted gull wing - M-wing - W-wing   Exploded Views Photos Below: LEGO Creator Medieval Castle Dragon 31120 by Richard Yao, on Flickr LEGO Creator Medieval Castle Dragon 31120 by Richard Yao, on Flickr LEGO Creator Medieval Castle Dragon 31120 by Richard Yao, on Flickr LEGO Creator Medieval Castle Dragon 31120 by Richard Yao, on Flickr LEGO Creator Medieval Castle Dragon 31120 by Richard Yao, on Flickr LEGO Creator Medieval Castle Dragon 31120 by Richard Yao, on Flickr LEGO Creator Medieval Castle Dragon 31120 by Richard Yao, on Flickr LEGO Creator Medieval Castle Dragon 31120 by Richard Yao, on Flickr LEGO Creator Medieval Castle Dragon 31120 by Richard Yao, on Flickr LEGO Creator Medieval Castle Dragon 31120 by Richard Yao, on Flickr LEGO Creator Medieval Castle Dragon 31120 by Richard Yao, on Flickr