If you're looking for information on the "Artofzoo" and its relation to "Vixen," "Gaia," and "Gold Gallery," here are some general points you might find useful:
Advances in mirrorless cameras and telephoto lenses have opened new doors. High-speed bursts allow us to see the individual droplets of water flying off a grizzly bear’s fur, while silent shutters ensure the subject remains undisturbed. However, the gear is just the tool; the artistic vision comes from choosing a shallow depth of field to make a bird’s eye pop against a blurred forest, or using long exposures to turn a waterfall into silk. Nature Art: Beyond the Literal
: Professional wildlife artists often diversify by selling a "brand" or "style" through workshops, seminars, and photobooks.