I think that the first pic is better in composition. The only thing you should have done is pulled the hand with the flower down and to the left, so it creates kinda diagonal with the face. somewhere just below where the sleeve trim is right now. And of course, pose the eyes so they are aimed at the flower. You don't need the bunch of flowers down below. As splashes of colour, they just draw the attention. Actually, what bothers me with your pics in general is that they have very weak shadows, even when the shadows are noticeable. In this case, the background tree is way too light. It looks better in the four small pics, but the figure is too dark there. As to the skin, try diffusion of 95-100, ambience of about 5, specularity ditto, and reflection of about 1.5, bump something like 10. And try inverting the alpha version of the skin map.

-- erlik