I would like to take a moment at this point to note that I'm not basically reproducing anything from that tutorial. All I ended up taking from that tutorial was the concept of using the selection and paint bucket tools to make the lineart - I use my own settings, my own setup of layers, and some completely different techniques to make my lineart. I feel I should give a nod to that tutorial, but I feel I also need to point out that my way of doing things is still quite different from it.
And here is the finished product!
Total time spent on this small bust: about 2 hours.