I've finished off the test model for my new Scion squad, and I am absolutely STOKED at how well she came out, in particular her face and eyes! She's not FULLY finished yet, I still need to apply varnish and then put the snow sprinkles and winter bushes on the base (oops, and also paint the lens on the thing beside her head which I didn't notice I hadn't painted until I was looking at it just now), but I can't be bothered pulling out the airbrush and setting it up and cleaning it out again for just one single miniature.
I'd signed up to Duncan Rhodes' Painting Academy (https://www.duncanrhodes.com) a couple of months ago, the videos are fantastic and clear and extremely well-produced, and I used his technique and colours for the face in particular. It's all of £4/month and there's a ton of videos and more added weekly.