Nice chars and mood, i like this piece.

The legs are very primitively defined... ah well, that's what you get for using Poser.

i hope you have a licenced maya... doing a commissioned piece with a pirated software costing 6grand would be very unethical indeed.
ethics aside,like arenhaus said legs need a lil smoothing.

I like the background, though it appears to be an altered photograph instead of being hand rendered. I think it should be ones goal, if using poser, to do enough postwork on the figures that one can not tell the origins.

I like the mood, but I agree the models do need some more post-Poser work, especially around the legs.

Man nobody seems to like poser around here... I wonder what poser is all about.
But I like the Picture, shadows on the models; background with sky.

The girl's head has an akward twist to it, and I feel that her eye's should be more closed. Also if this is a primitive setting and the guy dosen't bother shaving his beard I doubt he would spend time waxing! Give him some manly hair.

I also feel that the chacter's are set out from the rest of the picture. I'm not exactly sure what is causing that but it might be the color of the lighting on them. Though you did a good job with the shadow's, The light should perhap's be more red judging by the background coloration. I'm not sure if you had any constraint's when making this but in my personal opnion I would show all the way to the feet. Seeing feet would make the piece feel more grounded and I would connect the people with the background more.

One last thing to be picky about, the girl's hair does not have the soft line of connecting hair when it ememrges from the head. And it doesn't interact much with her face. This give's it a slight wig feel to me.

I don't have anything against poser and I hope I did not offend, I'm just critiquing becasuse the point of posting is to get critiques!