Upside drawing removes the mental conflict that arises when confronted with drawing complicated features. This is because our brain simply does not recognize the features for what they are. In our example, Igor Stravinsky's complicated folded hands become a series of lines and adjacent shapes that can be drawn just as you see them. This is the key to learning how to draw. Allow your own line style to come through
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(Source: https://millis.itslearning.com/ContentArea/ContentArea.aspx?LocationID=640&LocationType=1)
The upside-down man turned out to be Picasso's Igor Stravinsky in the end. At first we did not know what we were drawing and were simply copying a hidden drawing upside-down inch by inch. While copying it was hard not to make symbols out of certain things like the hands or face because I had once seen this picture before. In the end I think that it turned out fairly well though. Throughout it, since I was a bit unsure of what I was drawing at certain points I used a line style that I use for most of my drawings which is a light sketched line until I am sure of the line and then shade it over. Not knowing what it was made the drawing easier though because you could not make symbols of anything and just had to draw lines in general. When you would be drawing hands or legs folded together while knowing what they are you would confront problems of dimension, what they would look like, and how it would translate. So in all this was a good practice to get our R-mode side of the brain running.