Many instances of colored tree images make use of animals in their depiction of the natural world. Works such as 'Mountain Ranger' by Art Wolfe are highly popular among collectors of natural photos. This is because many of these works examine the symbiotic relationships in nature between flora and fauna, a subject that has fascinated biologists and nature enthusiasts for centuries, relationships which often can't be viewed safely in real life.
Tree and sky pictures are a popular theme in color tree photography. These works highlight the presence of trees as some of the longest-lived creations on the planet. Combined with the sky, these images serve as backdrops for contemplation and meditation on the subjects of nature and eternity. These sensitive works, such as 'Forever' by Bonnie Mohr and 'Too Much To Ask' by William Vanscoy combine the elements of trees, light, and sky in their nature-based images in order to create inspiring and unique works of photographic art.