This skull resting on a bed of decaying flowers is a digital painting with ominous overtones. This skull piece is called ‘Don’t Swallow The Cap’. My thinking is that the cap is the poisonous part of a certain flower. Or I could be way off.
Found this delightful skull shadow box on Tristan Robins blogspot. Not much other information apart from the the fact that it was an "El Dia de los Muertos (Day of the Dead) shrine". So of you know who it was created by then drop us