My work in progress has a scene where the hero is escaping across a desert with a group of acquaintances, so as I take my daily walk I try to see what he would see, such as a ghost moon and a ghost sun. Unless he has sharp eyes, he might miss much of the color -- the flowers are so tiny it's hard to see them at a casual glance. There are few creatures, but he would see jackrabbits and ants, scorpions and snakes (though I have yet to see either -- whew!), and lots of lizards. The lizards move so fast that only when one stops to pose can I capture an image of it. Lucky for me, one did stop to pose.