I hadn't even thought of this, but I can absolutely see how it would be an issue!
It seems like there are a few things going on here. One, the seams and textures aren't lined up. Two, the additional modifiers on skin color aren't being passed down to the body/armor texture. Three, facial gloss isn't being applied to the body/armor material.
Considering how expensive some of these armors are on the GTN, it would be nice if there weren't glaring issues with them.