10 - Batter is at the end of his swing and is rolling his hands over. May or may not have hit the ball, The batter doesn't really stand out enough for me.
11 - This kid just hit the ball and has a nice swing. Looks great to me but besides his number it is hard to tell who this is. The cage on the mask doesn't help but including the face would be nice. It is hard though because every batter is different and tilts their head differently as their swing allows.
12 - Looks good but the foul ball isn't flattering
13 - The fact that the ball is going to be hit makes this one of my favorite too. I like it when the catchers glove is in the picture also. The background kind of blurs everything together for me though. I'm not big on photography terms yet but thats what I would call it.
14 - If he hit the ball, it wasn't a very graceful swing. Wouldn't want people to see me swinging like that
15 - This picture is actually my favorite. It suprises me that it is but the picture quality and the focus you have on the batter is great. You can tell that the batter is what the picture is all about. no questions asked. For some reason though I would love to have the catchers arm/glove in this picture also. Not sure why, but I like that

. (like in photo 12) It can always be cropped out too if it doesn't look good. And if the distance between the batter in the glove is too great than forget it. I guess that depends on your angle.
If I had this picture (background, clarity, focus) and myself making contact with the ball, I would be ecstatic. Background is great too. That is hard to capture though. Nice picture!
Overall - These picture are great. My favorites would be 11 and 15. There is too much activity in number 13 and the rest of them don't show the best in a player. My favorite picture of myself I have from tournaments all show me doing something exceptionally well. I have one of me pitching - (Leg down, arm out in 3/4 angle, chest out looking professional..my favorite

) - a diving play - fielding a ball cleanly with great fundamentals - making solid contact with the ball. The best picture I think are the ones of the player in action and the focus is purely on the player.
In my opinion, if you want to sell pictures, use the high fps your camera boasts to get the best and most flattering pictures possible and always be ready for a field in the play and plays out of the ordinary.
If you are shooting for fun than learning to hit the button and the right time will be tough but good luck! That is a skill that would be well worth having!
Sorry for the lengthy explanation and such but I guess I just wanted to add to this conversation everything that came to my mind. :blushing:
Keep up the great work.