For the Dogs...
Definitely drawings - but realistic ones. Not cartoony.
I have Catahoulas, and I would want them to be represented. As the Chariot, perhaps. They are independent dogs who have a great deal of will. They do what they need to do and don't need a mere human to direct them in their job (hunting up hogs, herding feral cattle, etc.).
I could see a pair of 'houlas on the chariot - one a red leopard (like my girl, Libby) and the other a patch work or even a blue leopard. (My boy is a golden brindle / leopard). Each one going a different direction, with the look of determination. They are assertive dogs that have aggressive jobs. Well, mine don't, though. They are couch potatoes. They also excel at lounging around!