Makeing new Monsters

[Danny Boy]

Hello every one... i need some help here i realy want to go beyond just reskin some monsters to my Amnesia Mod and soo i actualy want to make REAL new monster(s) (but keep the older monsters bones and animations) so to do this i have i have downloaded the latest maya version and Zbrush (witch i already had for a long time)
i have made some concept drawings for possible new monsters but i would realy like help whit some expirenced 3D modlers here and if possible i would realy like the developers of amnesia to help out
all this because i have no idea of what is needed to make them, some kind of steps or tutorial to it would be very helpfull....
and if it helps out i will submit a concept art of one of the possible new monsters...

thank you


btw i tried to open the grunt's dae file in maya and it was CRAZY right now i can't send a screen shot but wen i can i'll submit it...