BlueEcho,

I was a bit concerned about the skin colour in the first images you posted, it looked too cold to my eye, like it needed more red in it. However the image you posted with VSS looks good to me. The other point I want to make is about the nipples/areolae. The center of the nipples looks like quite a bright highly saturated orange-red colour to me, whilst the surrounding areola looks very pale and desaturated in comparison. To my mind it would look better if the colour was evened out more across the nipple-areola.

Of course the above is only one persons oppinion, and thus to be taken with a large dose of salt, or just totally ignored. Humans have a wide range of skin colours, and if the colours you have look good to you, that's the main thing.