Twoflower Pencil Sketch
The Colour of Magic (or The Color of Magic, if you insist on being from this side of the pond...) is the first "proper" Discworld novel I read. Twoflower, the indomitably optimistic tourist still occupies a very warm, fuzzy place in my heart.
Done in graphite pencils, Twoflower was cleaned up only a very little in The Gimp, rescued from the odd smudge or stray mark. Based heavily upon the wonderful Kidby drawings in The Art of Discworld.