Hermes and Apollo Picture

this is supposed to represent the mythological time where Hermes give the oxen he stole to Apollo and where he gives the lyre in exchange for the art of divination.
I have no idea what a greek cow looks like at this time so it is a bit at random.
Apollo Kukuru
Water Nymph Sketch Card - Kate Bradley
Hermes and Apollo
Apollo's Sanctuary App, Vanity Waver