hand drawn of theropods in zentangle style

adult ancient animal anti antistress archeology art artwork beast book cartoon coloring cretaceous design dino dinosaur drawing drawn era extinct fauna fossil hand herbivorous illustration jurassic life line mesozoic monster nature ornament pachycephalosaurus page pages park period prehistoric reptile sketch stegosaur stegosaurus stress style stylized tangle theropods triceratops tyrannosaurus wild wildlife zen zentangle zoology