Im using model master's acrylic paints.
for the 5 oclock shadow, It came out quite well, im very happy with it, actuially. I mainly did that because I wanted him to look a bit more... not manly, but common unshaven male, kind of thing, if you look theres also a unibrow. I just dry brushed on the shadow, I'm happy with it.
As far as the colors, there mixes, on there right now are a few layers... I first did a preshadow of black with a wash, then I did a base coat of tamiya flesh tone acrylic, then I did some highlighting and recess filling with a cadmium yellow and raw umber, then I mixed white, tamiya flesh, and hull red together to get the main color you see. The stubble is actuially panzer gray, heh, the eyes I just used clear acrylic blue over white. The lips I did with a italian red, then I wiped most off and did a light wash of the skin tone over it