Raccoon Finished Work:
Original file-PSD: 12.5" x 10" or 3750 x 3000 pixels, 300dpi.
Medium: Wacom Intuos Tablet, Photoshop,Graphite Brushes by K3lit0; http://k3lit0.deviantart.com/art/Graphite-Brushes-63204997
It took me about 5 days, working few hours at a time; Paper texture background was added.