
I have painted the skin tones in a fairly neutral, slightly browned tone. Using Foundry Tan and then mixing highlights with Vallejo Beige Red. Every 2 highlights or so I added a very thin glaze of a pre-mixed "flesh tone ink" I made with some Golden Acrylic Gel Medium added.
The inks I use are FW Artists Inks and the above mentioned mix is made using equal parts Burnt Umber and Lemon Yellow, with a small dash of Purple Lake added.
Whenever I use ink for glazes or washes I always add Acrylic Gel Medium to bind the mix together, reduce the risk of colour separation and keep the ink from pooling in glossy pools.
I'm a little stubborn and stuck in my ways, so my techniques will seem slightly odd and old fashioned to many people. I generally prime miniatures in grey or white for instance, instead of the more popular black. This last example is mainly due to the fact my eyesight is going somewhat and it is easier for me to see detail on a grey/white primer miniature covered in a subtle wash of a brown tone.