Portrait book

This homework was set after using only tonal implement in the drawing workshop. we were told to go home and create around 10 images that related to the workshop. I chose to elaborate on this and thought how do we see tone. I then came to realise we see tone through our eyes so if i was to remove the eyes and the face it would remove the tone. I chose to use famous portrait painting for this. 

 Here you can see first i blurred out there face for the idea that when you squint you see tone better. by squinting at the blur u are able to make out the face through the tones. I then for the second image just used a simple black box to block out there eyes. I finished by pacing the manipulated heads over the original as  pull back as seen below.