Triceratops & Tyrannosaurus rex

Hell Creek formation, South Dakota, 66 million years ago. Depicted are tyrannosaurus rex and triceratops horridus. I wanted to depict possible sexual dimorphism with the two triceratops. The larger male is inspired by "Big John", an absolute tank of a specimen found in South Dakota. I can't help but think that you don't get to be that big without fending off a few predators. So here's Big John defending the heard and looking good while doing it.