This is a piece I did as a tattoo for a friend. It is based on the descriptions of two trees, Laurelin and Telperion, from Tolkien's Silmarillion.
I created it by first doing a couple of sketches to visualize how I wanted the trees to look. These were based on the descriptions in the book.
Then I did a sketch of the tattoo in pencil.
I scanned that in and traced it in the computer. All of the coloring was done in the computer.