Excelsior!

An adult male Apatosaurus excelsus tries to scare a Ceratosaurus away from a waterhole. Despite the carnivore's large saberlike teeth and body armor, it's no match for the sauropod's sheer bulk and whiplike tail and it just snarls at the herbivore in annoyance before moving somewhere else. Somewhere with less giant bullies, preferably.
Apatosaurus has always been one of my favourite sauropods, probably second only to Mamenchisaurus, and I really like this drawing, because unlike most of my dinosaur work, it's a scene where the focus is on the herbivore and it does not depict an act of predation, it rather shows just the convivence of two different species.