Custom model in gmod is dark?

http://imgur.com/a/O62LZ thats what it looks like
its not the texture bc it uses normal poison zombies texture
http://imgur.com/a/SlHFy here is the animated bones
none of the bones go under the ground

Pls help

I really recommend you use Blender instead of Milkshape.

Also try $illumposition to change the lighting “place” of your model.

Thanks that worked perfectly! :3