Reb,
You had asked for some advise/guidance. So, here is an easy way for a beginner to smooth skin. Again, an easy technique that does not require much experience.
(a) Open your .tif file in Photoshop and duplicate the background layer.
(b) Click on Filter>Noise>Reduce Noise.
(c) In the RN dialog, zoom into your facial area. Adjust the sliders as follows and click Ok.
Strength = 10
Preserve Detail = 50 (due to the high resolution)
Reduce Color Noise = 0
Sharpen Details = 10 (again, due to high resolution)
(d) To prevent the effect from affecting the entire image, create a black filled mask for this layer by Alt-Click'ing the Mask icon at the bottom of the layers palette.
(e) To bring back the effect on just your facial area, we will paint white on the mask with a large soft brush with high opacity. We don't have to be careful, as the filter preserved much of the fine detail.
(f) Select a 40 pixel, 0 hardness, 90% opacity brush. Ensure your foreground color is white (hit D, then X). Zoom into the facial area and paint all over your skin.
This will soften the skin, remove razor stubble, and many blemishes. The effect is more for the areas of similar tonality (your right side). The forehead will require further refining. (See before and after below.)
For the remaining blemishes, use either the Spot Healing brush, or the Clone Tool (use either in a darken or lighten blending mode, rather than the normal default). They go pretty fast after an initial Reduce Noise approach.
I, or someone else will post a guide for using the Liquify Tool to reduce her shoulder (although they don't really need it

). Again, this tool is easy. Much easier than masking, cloning, etc.