its nice to know this can be done at 6400, but truly the iso 800 had the best results. If you add one stop in post, mask and track only the girl, you could use a layered noise sampling algorithm to keep the black from ghosting by reducing the noise, de-saturating the the yellow from the girls face, find the color channel with the noise in the girls face, which in this case is in the blue channel, reducing that nose and having a more organic feel to it all. my 2 cents



