Thanks Nick !
(Pukka? neither me, but I am not from London, but Brussels)Glen = the tone difference comes from the light balance; these photographs were made at one year interval, and different light bulbs; at that time I used a selection of several choices of light on the camera to get a selection of colours closest to reality. Since several months, I adjust my white with a piece of white paper to adjust t the exact temperature in ° Kelvin and have a more reproducible definition. Indeed the lighting is sometimes with ambiant day light, or in the evening pure light bulb in Turkey or white bulk in Belgium, each having its température varying between 6000 and 6500°K. So he orange or brwon dépends much on the balance.
But I reworked the skin in the shadows by adding TOB (Burned Earth), mixed with Terre Verte (a dark green), to give more depth in the right side of the face and of the breast, adding also a shadow abve the eye... Also the checkbone was too wide before and I darkened the right side by multiple glazes of TOB/Green Earhh very light, over and over ...
This is my learning curve since last year. This rework is my 68th figure painting since started three years ago with acrylics.