Wow I really like this! Beautiful perspective and interesting poses. The coloring style is very unique and alive! There's only one small thing that bothers me, the girl on the right's hair is blowing in the complete opposite direction from the other two which doesn't make any sense. But ignore that and this is insane 8D
Unless the hair is fly away light, it wouldn't sway that far in comparison to the strength of the wind causing the others to blow that much in the opposite direction. It's open to interpretation of course, but physically it just doesn't seem right.
on a closer look, the black hair is waving extra from her turning her head. the red haired one seems to have thinner hair, as well as she is lifting the area closer to the scalp, which is the heavier part. but as you said, it's open to interpretation.
You'd have to turn your head quite abruptly if you were going to make you hair sway that much (assuming there's no wind at all to help), my hair goes down to my waist so I have a good idea about hair movement, but I could agree with the rest.
Two things I find the most beautiful: human body (especially the female body, heheh) and technology. As a researcher I find all this sci-fi art pieces inspiring. Makes our sometimes bland world colorful. Good work!