Starting with merging all the layers, Nino uses his (included) plugin to run a frequency separation on the image. In this case, Nino paints nearly every section of skin, often over “painting” to keep the strokes looking natural and worrying about masking the overspray later. This method needs to watch to completion to see it fully develop.
Nino uses liquify for corrections and stylistic choices, and done with anatomy/physique kept in mind. Common in glamour work is an abdominal crease - Nino shows you his technique for minimizing this issue.
Nino jumps into making the eyes pop just a little bit more using levels and a luminosity mask in order to preserve contrast of the eyes.
Nino introduces noise to his image to provide overall harmony to the effects while also using noise to add texture back to the frame. Finding the balance between the previous layers of the edits is critical to your image's final success.