This is the work of Maine artist, Clint Fulkerson. You can look at his website here. I love all the detail and pure love of drawing that is evident in his work. "Doodling with restraint" as he says, rings true to me about these pieces. I can't maintain the neatness he does in his work, but I admire it. This work also reminds me of the scratchboards I used to do as a kid. Maybe I should do some of those again.