Every year in the fall in the Pantanal they have a festival called Calvacado do Cavalo Pantaneiro (Cavalcade of Pantanal Horses) where ~150 horses and riders party and whoop it up and ride from fazenda to fazenda across the Pixaim River. It is a ribald occasion with lots of drinking, selfies and hilarity as people fall off their horses into the river.
This girl was a good rider and made it across without falling in. Note the sunlight freckles on her face where the sunlight came through her straw cowboy hat.
Other photos of this occasion, plus a couple more wildlife shots, can be seen here (plus more to follow): http://goo.gl/VMlwLK