I shot a couple of hundred available light photos over the holidays, with a 85 1.8 lens at ISO 1600. I used AWB white balance, mostly because I was going to change them to B&W anyway. Still, I thought you might want to check out the icky color and a "correction" I did using Curves (with a tweaked white balance in Auto) I set the white balance for the curves command using a trick I read about in the book The PhotoShopCS book for Digital Photographers, then applied the curves to just the saturation channel. Better than the original, but still pretty icky. I used the white wall behind her as a reference point. Skin tones still don't look right, though.