I'm not sure this bluish sheen or color cast is coming from V4's hair(Cindy Short Hair and Rainbow add-on pack from DAZ Studios I believe or is reflected from the environment.

I'm using "Hollywood Blvd as my working space within DS4 Advanced, and here's the kicker, NOT USING any lights.

I'm using a kind of darker or dirty blonde hair mat with this Cindy Short Hair package and scratching my head why blue is showing up in her hair.

Oh, and one more thing, today when using DAZ's Wet Skin Shader many of the water beads were picking up reflected blue lights. How is that happenimng when I'm using no lights(yet) and my Vicky is not wearing any clothes with blue or cyan in them at all?