I don't quite get what you mean when you say you can't move the eyes apart. The eyes might end up in a different spot than the other images? Or because you would have to move the side of the head too?
If you keep the dark hair, it could use some shiny highlights. Or you could make it dark brown rather than black. Sci-fi women often have unusual hairstyles (Star Wars, for instance) so I think you can get away with almost anything.
The gadget on the side of her head is good. It's subtle, and suggests the presence of technology without it being overwhelming.
The last image in the row has banding along the jawline. The thinner neck is better, but it could widen out a bit at the collar to suggest a curve rather than purely a straight line.
I don't think the skin tones need to be darker. The darkest orange/brown used to outline the jaw and neck is a bit saturated compared to the other skin colors. The red hair hides it, but the dark hair exposes it. My suggestion is to reduce the saturation of that color (some) and add a little yellow to the lightest skin tone.
I think facepaint as a vision of the future was more a cheesy 80s thing. Not usually black (goth/KISS/juggalo), but generally a solid color. Often just a line or two along the cheekbone. I was looking at some old cyberpunk art that day.
Some images for inspiration, if you wanted to stick with the cyberpunkish theme:
http://sharetv.org/images/stargate_infinity/cast/large/stacey_bonner.jpgFrom the Stargate Infinity cartoon circa 2002, but the character design is so very 80s. Pink hair, partially shaved head and an asymmetric hairstyle. Blue lips, and random paint (the bullseye on the side of her head).
http://shineanthology.files.wordpress.com/2009/06/cyberpunk-fantasia.jpgSome of these trends stick around in 2009, with the addition of piercings (ouch).
Also:
http://www.wiredreflexes.com/sr/gfx/gallery/john_zeleznik/dna_doa.jpgNote the facepaint on the woman in the middle of picture.
http://www.wiredreflexes.com/sr/gfx/gallery/srtcg/contacts_media_chick.jpgSomething a bit more modern and less fantastic. Has a slightly unusual hairstyle and a headset phone.
Hope this helps,
Tourist