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Charlie, I've also seen your other rodeo shots. The action in all is reasonable but you you must always strive to gain faces to display the emotion of the moment that tells the story, particularly with the extremes of emotion shown in rodeos which are a very big part of a good shot. Not only the rider's face but also that of the horse or beast. Think of a portrait devoid of a face.
Never shoot from the stands unless you have no choice and never stand up unless you have no other choice. If you're not getting dirt on your backside, you're not shooting low enough to put the viewer right in there with the action nor are you able to amplify the height of the horse/rider, it's jumps and a rider's fall. To the contrary, the higher the shooting position, the more the perception of height and size is reduced.
B&W always looks good for rodeo shots, but I've noticed both motion blur and lots of grain/noise (perhaps the grain has been added in the mono conversion) in your past threads, so I'd up your shutter speed substantially and also lower your f stop which will also help isolate the subject from the backgrounds. I notice number 2 looks like you've tried to brush soften the background and it looks very patchy.
Hope this helps.