It is the aftermath of K/Pg, ie comet/asteroid ending the Cretaceous Period, heralding the Palaeogene. First plants to recover are the pteridophytes (ferns), seedlings of trees, and so forth. Here I’ve shown family of Purgatorius (or similar). The skies are brightening (clouds parting like curtains) after the long cold and dark ‘nuclear winter’.This family is venturing out of the hole after months of living in the darkness living on insects, seeds etc. They’ve even managed to produce offsprings, but due to extreme hardship, only one survives as you can see in the painting hiding behind the female. The long reign of the very successful dinosaurs is now over, and the descendants of this little family will have to endure millions of generations of struggle for survival producing new species of mammals spreading across most of the world filling new ecological niches, which will evolve into different orders of mammals including primates and ultimately… Homo sapiens. No comet/asteroid = no humans. I made the plants and the mammals colourful, signifying these are now the main characters for the future. The reign of the mammals is beginning...