George Stubbs, the renowned 18th century British horse painter (who spent years dissecting horses to perfect his anatomical technique), also toiled in more exotic animal and occasional human portraiture. (He's also the man behind the zebra painting in the Yale post below. If you're ever in New Haven, you really must check out the wonderful, soaring Stubbs room Yale Center for British Art).
Above is his aptly named 1765 work, Indian Cheetah with Two Servants and a Deer.
Soldiers of the 10th Dragoon Regiment, 1793