Wow this looks great. Don't worry to much about the face I think I can photoshop that into the picture? If you just get the angle right I think I can do the rest.
By the way can you save the pose and assign it to a different model? I am working on doing her original Pink armor as well and if it is as easy as plugging in the mesh and textures then we could give people that mesh as well. Also feel free to add this to you Ashley mod. I am a fan of your work and am glad that you are back. I will of course give you credit when I post this. Proud to have a co-mod with you.
I'll tweak her pose a LITTLE more and look into saving the pose (never tried it as I've never really done much with posing before other than for checking weights). Don't give me too much credit when you post it, just say I helped with the pose if you like.
I actually removed the bones from the hair and head, leaving just those in the body - Blender wont import multiple psks with bones in them so I had to debone and convert to obj files. I then just placed the meshes where they needed to go and fit them together. I could join them all together into one big body/head mesh and weight everything but I'm not sure that would transfer to other models so easily.
I'm glad you did this because I always wanted to change the images for squadmates to match my mods (particularly Tali and EDI) but really wasn't sure how to proceed. I could try and use the pose for those models as a test. I'd at least have the starting point (screenshot) for photoshopping a final product.