A really important guest post from tattooer Mark Duhan on Tattoo Snob about referencing vs. reproducing the work of other artists along with some images of tattoos he redesigned. "Recently, I’ve had a few clients come in with photos of custom tattoos in the hopes that I will duplicate them. After I educate them on the etiquette of custom tattoos and explain why I need to redraw/redesign them, I usually get one of the following responses...'