The helmet is amazing!! Great work! I wouldn't use the eye shadow, maybe it's only because you mentioned it, but it seemed a bit awkward. Also, I agree with putting more paint down your neck so that way it's better masked. Maybe you could get a mask in the same material as your outfit to create a seamless look, or a new kind of make-up. It seemed a bit too translucent and not bright enough. My last critique would be that some of the lines on the body suit (specifically the one between black and white on your chest (right side)) are not as clean as they could be.
Over all your attention to detail is amazing and the paint job is really great! Your poses are perfect as well! Great work! (: