There are some healthy looking cattle here. Nice shot of the cattle market. Here in Germany a deal is fixed even today with a special kind of handshake after the bargaining.
It's good to have my personal copy of the National Geographic being delivered to my door again. We have cattle here too, but nothing like what you've shot here. Ours are mostly Black Angus, live nearly wild in the grassy hills and rarely see humans. Love the action and the colors.
Think about the photo before and after, never during. The secret is to take your time. You mustn't go too fast. The subject must forget about you. Then, however, you must be very quick.
Henri Cartier-Bresson