Thanks for your answer,
You’re right, the pose of Vanessa is a bit weird, if we look her left leg for exemple. The truth is that pose was one for a pack and I just customize it just a bit, only her right arm (the original pose looked like a military salutation!). Even I told before I worked more on all the pic, I didn’t spend time enough on the girl pose. I think the ankle’s weird visual effect is amplified, increased more by the shadow on the right part of the pic (and so, the left side of all her leg). I didn’t noticied that on the 3d preparation because I turned off lights!^^
My objective, my goal for that render was more a work about light, shadows in an economic way, and in a less important part, real photographic effects (blur and focal) to avoid a 2 hours render.
I worked too on skin effect, and light refraction, to avoid an opacity effect, and I’m quite happy of my settings with this body and skin texture!
But even I tried to work on a lot of parameters, you’re right, I should have worked more!
Thanks for the advices!