Super-talented Italian artist Marcello Barenghi has a habit of creating mind-bending hyper-realistic mixed-media drawings that are sometimes indistinguishable from photographs. While some of the drawings can be identified as drawings, others require sharp observation and attention for the illusion of photo-realism to break down. He has posted many speed-drawing videos that condense a process that can often take 4-6 hours into just 5 minutes. He also shares drawing guides and art material lists on his blog, as well.
