"The Ouroboros is an ancient symbol depicting a serpent or dragon swallowing its own tail and forming a circle. It has been used to represent many things over the ages, but it most generally symbolizes ideas of cyclicality, unity, or infinity."
Well, after a long while i caught some time to do some drawing. I accidentally remembered the word ouroboros a few days ago and thought how I could draw one, but with a twist. I was watching the 'gunXsword' anime at the time and there was a really cool dragon mech in there so that's where the inspiration came from.
Basic geometry of the dragon was modelled in 3dsmax and rendered in mentalray. It was then painted over, along with everything else, in Painter X. Finishing touches added in Photoshop CS3.