Portrait of Robin Williams

Portrait of actor Robin Williams.
Tools and materials: watercolor paper, black watercolors and black pencils.
Artwork size: 15 cm x 21 cm.
I use this photo reference: https://i.pinimg.com/originals/29/bc/bc/29bcbc6fe88f81bd03a62f1d276ba290.jpg
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You can see this portrait in my Instagram: https://www.instagram.com/p/B4UaS-2IEQN/