09. Now that the basics of the face are working, we can start detailing. For details Patsouras says he generally uses a very small, hard-edged brush. In this case, bring out details in the hair, eyebrows, and eyes giving it more definition generally.

10. Continue to work on the detailing, keeping the light source in mind – finish up the hair and refine the face in general. The ‘sketch’ layer is not needed any more, so delete it. Try not to work in too many layers – one for the face and one for the background is enough in this case.

11. Create a new folder in the Layers palette and name it ‘Textures’. This is where we’ll experiment with textures until we find the best results: always use separate layers so you don’t destroy what you’ve set up so far. Create a new layer in the ‘Textures’ folder and set the blending mode to Soft Light. Open up a photo texture of a rocky surface, courtesy of cgtextures.com, and apply it to the painting using the Clone Stamp tool. Then completely desaturate it. Applying textures in either Soft Light or Overlay modes could lead to oversaturation – to fix this, select Image > Adjustments > Desaturate.