How to Draw

{"smallUrl":"http:\/\/pad2.whstatic.com\/images\/thumb\/8\/86\/Pencil_hardness.jpg\/359px-Pencil_hardness.jpg","bigUrl":"http:\/\/pad1.whstatic.com\/images\/thumb\/8\/86\/Pencil_hardness.jpg\/759px-Pencil_hardness.jpg","smallWidth":360,"smallHeight":269.73134328358,"bigWidth":760,"bigHeight":569. via Pocket http://ift.tt/1CQ8zxz