Of Iron and Devils concept art. discussion

Hello all, these are digital sculptures I made in zbrush of some of the characters from my book: Of Iron and Devils . Eventually I plan to add more characters as well as some of the critters. Comments, critique and questions welcomed. Hope you enjoy them.
















This is a concept of a Nhavgyde of the March.


This is a concept of a Divulen Elf. Two different renders, one from zbrush the other from keyshot.