its called Haute Couture
Very nice makeup, very high fashion!
I love the way the lips really 'pop'.
One thing to look at is her eyes, the overlaying has made her irises very dark and the whites of her eyes are very blue compared to the original, try masking out the eyes so the original layer comes through.
Noise can be used for any kind of retouching where you airbrush the subject rather than clone/heal, not just on makeup. I use it to match the grain of the photograph and then either lower the opacity till the skin texture shows through or use the healing brush to add the texture back in over the painted parts (eg tattoo removal)
I generally add noise to the painted layer rather than the mask (obviously the painted layer doesnt have a mask heh)