Non professional rider slouching all over and hanging off horse's head with random tack on it that fails to show off horse at all? Check!
Using horse as jungle gum while at the same time managing to be utterly oblivous to the multitude of stains on said horse which could easily have been brushed off and are now transferring themselves to pants? Check!
Randomly dangerous manoevre which further illustrates complete lack of safe riding gear? Check!
I never look at one of these shots without hearing a voice in my head saying ' an' this 'ere's the last shot we got of yr uncle George, right before ole Bertha got a nasty wasp sittin' on her big behind...'
Anyway, gotta be a classic.