For those interested, these are the colors I used: Ultramarine and Prussian Blues, Veridian Green, Sap Green, Cadmium Orange and Yellow, Alizarin Crimson, Raw Sienna and Titanium White. I did not use black of any kind, and the fact is that I never do. I don't even own a tube of the stuff. I always prefer to "create" my own blacks, which are never really true black but a mix of colors that have a similar effect. Pure black from the tube always looks "flat" to me. It's a personal choice that I have stayed with since I started oil painting.
So this piece is just about finished. I don't want to over-work it, I want to keep it "painterly" - meaning a little loose and not quite so illustrative. I am actually liking this new painting much better than the first piece I did of the same subject.
The next step: The Final Step!