This is one of my old work. I retouch this image only with dodge&burning technique. No frequency separation or something else. It’s longer, but a completely controlled process and result.
Also you can see process with basically changes and d&b layer.
Dodge & burning layer:
For now I using dodge&burn, frequency separation, Portraiture and a few auxiliary techniques. I think doesn’t matter what technique you use. Only the result is important.
If you want do retouching like this but don’t know how, read my post How to level up your retouching skill.
Beauty retouching with dodge&burn