I agree with KMH. I feel these are a bit boring, just kind of snapshots that could be taken with anything from anyone. If you're going to try to take non-action sports photo's, eye contact is crucial. If this was the only place available to shoot from, try to get some action shots. Start snapping when the pitches come in, get some ball and bat action in there. If you don't have the reach to go down a baseline, try to get right up behind the catcher looking down at the pitcher.
As for a lens recommendation, at the very least we need a budget to work with. These look like night shots, so if low lighting is an issue the first thing that comes to mind would be a 200/2.8
Hi! Thanks for the feedback! I actually tried to get some action shots but I couldn't get the stutter speed high enough without the picture look almost completely black. He actually has a game again this week and I plan on going again to try and get some better shots. As for the budget, it isn't very high... I can't do more then $250. I'm just starting out so I'm trying not to spend a ton of money for things that I won't use much.
Ok, well to increase the shutter speed you'll want to increase your ISO. For sports/action shots I actually prefer shutter priority mode, I set my camera so it automatically selects the ISO and I pick the shutter speed I think I'll need for the shot based on what I'm shooting. Before I shoot I take a look at the settings in the view finder, if the ISO is too high I can always compromise by lowering my shutter speed a bit until I get it to the balance I want, then I'm ready to shoot.
I've found it works fairly well for me. A lot of folks prefer Aperture priority for action shooting, but I've just always found shutter priority gives better results with fewer adjustments at least for me personally.