I can relate Karin about the "dress-ups" and I too paint in layers quite similar to you (only similar as for the techniques certainly not talent) therefore, I naturally have several going at once.
As for what to paint, I think that is part of my problem of focusing. I feel as though I get so many things in my head that I want to do---I get overwhelmed and do not focus.
Let us know about the Geneses. I would be most interested in faster drying. Do you feel that Liguin dries quicker than a pre-mixed medium. I mix my own 1/3 dammar 1/3 linseed oil and 1/3 turp. Paint with it very sparingly unless I am glazing.