Ok, I have the general composition started. It may still change. You never know till you add clay and see where horses heads are in relation to the other horse and rider.
The photo's above show the clay of the first horse to get clay. As you can see I create the skeletal structure in clay. Not precise, but enough, so that I can add muscles later.
Below are 2 videos I shot in time laps. That's it for today.