This is my colleague Martin, who graciously offered to be a model. Here, I'm trying to mimic classical oil painting methods, with acrylics, and this involves a whole lot of nifty work with the water spray, but may eventually be a useful method for painting.
Acrylics, approx. 46 x 61 cm.
Below is an early version, after fixing the pencil drawing, and laying in the underpainting with some mystery dark color.