I truly have to say that this is perhaps your best coloring job ever. The lighting, shading, tones.............it's just spell-binding. There's not even any real fetish-related context in it, either. It really comes to show how talented you are, no matter what subject matter you tackle.
Your lighting is very effective at setting the mood here. Done wrong it could look like she's telling a campfire ghost story, but you've managed a soft, cool glow from beneath that enhances the quietness of the scene. Well done!
I second what Fwank said, I've liked the focus on Cyborg/robotic stuff, and your style is great for it. The shininess and supple look of the flesh contrasting with the mechanical innards is something special.
Wow, that's fantastic work. You've always been good with the cyborg ladies, but this is perhaps a new level, I wouldn't be surprised if I saw this hanging in a gallery. The lighting, the texturing, her expression... Just fantastic.