i don't know how to use in game textures,add team color, and warpping textures plus i don't know how to run imported animation on the base file.I like it. You definitely need to try to use in game textures. There are a lot of ways to make same results without the custom texture. You can use blank white textures and tint it with the geoset coloring or you can just add green team color instead of usual team color.
For the muscles, istead of custom texture you can use some night elf texture or use human one and tint it with the geoset coloring.
Sure,no problem.I would suggest changing the shoulder pad textures from the Pitlord to the Dragonspawnextras. I also think using the Nerubian texture for a majority of his armor is a cool idea since it fits his armor scheme pretty well. Cool model though, I like it.