GraphicRiver - Graphite Pencil 2 Photoshop Action
Desirable image size is around 5000 pixels but you can always experiment. Can be very interesting on much smaller images as well.
Photoshop ABR | Photoshop PAT | Photoshop ATN | CS3+ | RAR 44,4 MB
Photoshop ABR | Photoshop PAT | Photoshop ATN | CS3+ | RAR 44,4 MB