Thanks for the comments folks. I will be the first to admit my PSing skills are brutal and sharpening is definitely one of my weakest aspects of it.
pete, I have never been to Chitzenitza, but I have been to Tikal in Guatemala, Macchu Pichu in Peru, Angkor Wat in Cambodia and a pile of ruins in Egypt, so Tulum is TINY in comparison. Still interesting though especially since it is on the coast too.