However I do like this one - as I can view an image full length of the reproduction or by clicking on the circle on tlhe right side (below the arrow) to bring up a 'head and shoulders' study. Click it again and go back to the full length (of the reproduction) version.
The link is -
http://www.mastersofportraitart.com/index.html
What I like is - I can use this technique with my GRAY SCALE/VALUE FINDER card on tlhe enlargement or full length to get a very good idea of the tonal value for skin and or clothes to use with my photos by matching the reproduction with the corresponding VALUE on the GS/VF card. These photos can be used for photo enlargements or for painting references. All I do is use the BRIGHTNESS/CONTRAST controls on my art program to match the VALUE of the GS/VF to the applicable areas in my photos.
The cake in the image is worked up using this method.
Norm D