I like how the red gel light hits the model's body in the first shot. Even though it's not "natural" light, it looks perfectly natural somehow, if that makes sense.
I can't offer criticism as I've never done this effect.
Your fav photo btw reminds me of a Star Trek character. :)
I think I know what you mean, you don't necessarily feel like the colored lighting is forced?
And haha! I can see a star trek vibe now that you say that. Now we just have to figure out what his character name is.
Captain Kirk of course :) A young version....maybe his son. hehehe....