Speed Drawing: Silver Pendant - How to draw 3D art

My second speed drawing on YouTube :) this one is suitable for beginners http://www.marcellobarenghi.com
➜ SUBSCRIBE YOUTUBE: http://www.youtube.com/user/ma....rcellobarenghi?sub_c
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➜ TWITTER https://twitter.com/BarenghiM
➜ MY DRAWING TOOLS:
mixed media on grey paper, pencil 7B, 9B, B; white chalk pencil; smudge; black and white acrylic http://www.marcellobarenghi.com/p/materials-used-for-my-drawing-video-on.html
➜ FINAL DRAWING: http://www.marcellobarenghi.com/2013/02/silver-pendant-drawing.html
➜ THIS DRAWING TOOK ME: 1 hour 20 minutes
➜ MUSIC: created in GarageBand

Original title and notes (2013)
Crazy drawing 3D illusion - the silver pendant HD video speed painting
Hyperrealistic Speed Drawing of a Tree Silver Pendant by Marcello Barenghi, 3D illusion time lapse HD video