Am I right in thinking you are going to do a different projection for each colour ?
If so think about which pieces can be sewn together afterward in the uv editor to make as few seems as possible and try to hide them where they won't be seen ie under the body or arm pit ect.
Right now you have a few triangles in your mesh in prominent places like the shoulderblade, if you plan on smoothing this then you might get some nasty smoothing in these areas.I would try to get rid of the triangles before UV mapping or at least move them to a less prominent place.
A nice model though for one of your first attempts,it has some character.