"The elephant driver was designed to fit both the African and Indian elephants, he sits perfectly on the African elephant with his legs. As to the horses, that was a mistake by the designer and it wasn't noticed until all the moulds had been made."
Hope this offers some explanation. It sounds like the crew were designed to be universal but it just happens the mahout fits better on the African elephant. It's a real shame about the horses and spells bad news for all the horse archers I have waiting for me at home.
I'm going home for the day tomorrow so will hopefully get to take a few snaps and might prep and prime a few and bring them back with me to paint!