I have never painted a portrait before, so it has been quite a challenge getting this far. One thing I have learnt from this experience so far is that, unfortunately, my memory is not as good as i'd hoped. A decent reference photo or drawing would have been very time saving and helpful. As for painting with oils, the more I paint with them the more I LOVE them!
Oil paints are very flexible to learn with and have a richness that really suits portrait work.