Outstanding first attempt! I found over the years that three thin base coats are preferable to one thick base coat. I usually apply my base coat, when dry I put a darker shade of my base coat in the creases and folds, then dry-brush lightly a lightened shade of my base coat colour over all of the highlights. Finally I usually use a very, very thin wash of flat black over the whole thing to kind of blend all three colours together. I did not view the You Tube link above but I suspect from the figures final appearance that a similar technique was used. I learned my from my mentor - Sheperd Paine, I never put down either of his books throughout the 70's and still refer to them today! What sort of paint are you using? I use water based acrylics (Polly Scale brand preferred), I find them much easier to work with in both brush and air-brush applications.
I'll be starting the figure painting on my latest dio. "Clearing the Trench" shortly, I'll document it for you.
Well Done Fisher King, keep us posted!
rb