This Can't Be Happening!

Terragen 4.5.60, Pixelmator Pro 2.2

Plants by Xfrog and CGTrader.com.
Joshua trees by moonikoffice @ https://www.cgtrader.com/3d-models/plant/other/set-of-joshua-or-yucca-brevifolia-trees-3-trees.
Dragon model by robinartfx @ https://www.turbosquid.com/3d-models/dragon-3d-1622481
Man courtesy: Luigi Estuye @ https://unsplash.com/photos/j0wFiSd1EvY
Dinosaur 1 courtesy: Fausto García-Menéndez @ https://unsplash.com/photos/hYKG311mff8
Dinosaur 2 courtesy: PePeEfe @ https://commons.wikimedia.org/wiki/File:Abelisaurus_%26_Lohuecotitan_models_-_Castilla-La_Mancha_Paleontological_Museum_(Cuenca,_Spain).jpg

Also available @ https://www.deviantart.com/jhmartinez/art/This-Can-t-Be-Happening-896604158