"A matter of experience, learning what conditions make it easier to see and what conditions best suit the subject," Ajax explains.

He has brought a sketchbook and charcoal, to start with. "How would you like to pose, in the piece?" he asks, taking a mental inventory of the room. However Skellig would like to be for the portrait, there will be a way for him to be comfortable. Light pours into the room from open areas near the ceiling. Openings too high for prying eyes!