Oh my word. Not your typical troll face... but a more classic take on a troll in this tutorial. This is a more detailed, organic type of drawing, so I recommend a felt-tip pen of a 6B mechanical pencil if you're drawing by hand.
DragoArt members upload artwork and drawing tutorials! They are also allowed to leave comments on tutorials, profiles, etc. Many more features, as well; it's way better than just being a boring guest!