The portrait of Lorena finally got dry enough for me to try applying some glazes. I used M Graham's non-toxic walnut alkyd medium for oils, mixed with small amounts of paint.
Note: The top photo is of the eyes after I read pasadenaadjacent's comment and re-painted; the lower is of the askew eyes pasadenaadjacent commented upon. The last photo is of the whole portrait, as it now looks.