Finally did this guy in 3D! It's Railrunner, a monster/anthro roller coaster from my story that's due out this summer. I really just did this as an experience with hard surface objects, the shadowbox tool, painting in materials,and playing more with insert mesh.
I would have loved to go more realistic, but at 21 million polygons Zbrush was lagging and crashing every once in a while.

Views of the Sculpt: http://railrunnermiranda.deviantart.com/art/Railrunner-the-Red-Roller-Coaster-Digital-Sculpt-452349605

The plot to my story Twisted:

WHAT HAPPENS TO AMUSEMENT PARK RIDES ONCE THEY ARE PUT INTO STORAGE OR DESTROYED? They are magically transported to a place only known as “Amusement Park Between”, a park that co-exist within any other and is only accessible by those who are of its blood. There are no limits and no humans. The only residents are the rides. However, they are much different from our own. Amusement Park Between’s rides are ALIVE, having both the characteristics of man and beast. Amusement Park Between was once merry and joyous, but for the past several years it has spiraled into turmoil. An evil tyrant known as Ironwheel has taken control, casting a dark shadow over Amusement Park Between, and whose evil intentions endanger both their world and our own. The rides only hope is the key to their prophecy; the red will defeat the black. That particular key is the only ride that was created differently. The red roller coaster, Railrunner. AND THIS IS HIS STORY.

Yes, these rides are BIO MECHANICAL, meaning they are metal on the outside, flesh on the inside.

Twisted,Vertigo, its characters and concepts are copyright to Miranda Leek, (me) DO NOT USE, COPY, or STEAL