Quick Portrait Colour Sketch

Had a friend join me and sit for a couple of hours. This is part of my next step to try and get more face to face time instead of working first from photos then have my model sit for me. I'm switching this up by trying to have a sitting first then proceed larger with the photo and quick a the colour study.

Here I was finding the overall shape of the head some measuring and placement of features but mostly finding planes. The first preliminary drawing with the first painted drawing stage on top.

I had done this in a smaller book and with having a secondary light source I found it a little difficult to get the values correct. Started with 3 piles-a light flesh tone mixture, shadow tone and mixed transitional tones which I varied from warm and cool depending on which side of the face this was on. Since I was trying to be quick with this session I managed mostly with following what I was seeing but got a bit lost with warm and cool aspects having the secondary light source plus finding it hard to see the temperatures and I wasn't sure of the theory and how it should be applied. Back to my studies for that.