Here are some close-ups of the face -showing the stippling of paint to create the effects of the beard stubble. Notice the subtle hints of green and blue employed to enhance the quality of illumination within the darker areas like the underside of the brow, the eye bags and the neck. You can also catch a glimpse of the range of colors used to render the green on the camouflage of the Denison smock. Pure black was not used - rather cut either by mixing Hooker's Green, Storm Blue or Purple Madder. With that may I add that the color mixed from Hooker's Green and Purple Madder makes a nice dark tone. I like it because it can be either green or red bias depending how much you mix of each.
The British airborne beret badge on the pedestal makes a respectable display as a commemorative tribute to the British airborne in World War 2.
And finally for curious folks who wonder how I can still paint given the current circumstances of have two young children at home; here's my answer with the portable set-up I'm using to paint at my place of work.