I did these a few months ago. The initial drawings took about 40 minutes and then another 90 to do in oil pastel.
Oil pastels are a challenge if you want to do detailed areas like the eyes and lips. So you kind of have to let go of wanting to do that. You can go back over the pastel with pencil. I did the first one on a scrap peice of paper – unintended collage. Oh well. Interestingly they both look leftwards (to the past?), have similiar profiles and plain backgrounds.
– 14th century ‘Portrait of a young woman’ by Antononio del Pollaiuoulo
– 4th century ‘Saint Fabiola’ by Jean-Jacques Henner who painted it in the 18th century.