How it works
SketchAwesome is one of Photoshop actions that absolutely a time-saver. It will turn any image to natural drawing sketch. Available in ATN Photoshop action format and a handy PDF instructions on how it works. Make sure to read the instructions carefully to get the most of this freebie.
Note: For best result, make sure your image has at least 2000px wide. The smaller image the more rough the effects.