Polymer Clay Creature Concept Drawing

I've been driving to make more polymer clay creatures. Maybe one day to design them for mmorpgs or illustrate them for card games. Here's a sketch.

Polymer Clay Sculpted Creatures In Progress

Well, here's a bunch that are waiting for more clay and more sculpting. I found myself doing too many giraffe like creatures so I branched out in to turtles and scorpion dudes.

I have used up almost 12 yards of armature wire in the past two days. Some of the wire has gone to my felted creatures.

Armatures for polymer clay creatures.

I'm new to armatures for polymer clay, and so I'm going to list resources that help me.  I've been using steel wire covered with crumpled aluminum foil to help bulk out the form, and therefore use less polymer clay. But I want more tips on making anatomically correct armatures for animals.

http://www.squidoo.com/armatures 
http://joshuamosley.com/tutorials/claymationArmature/armature.html 
http://evasion.imag.fr/Membres/Franck.Hetroy/Projects/Skeleton/gallery.html

 Here's the concept of one of my creatures, and the final little dude. My sister bought a smaller similar creature for $20. I dyed the feathers too.