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I love the second shot. I've been trained to try to capture these elements when shooting sports: ball, face, action, and contact. It's rare that you will get all of those elements in a single shot, but the 2nd image has three out of the four (with contact being the least important of the four elements anyway).
The first shot isn't as compelling to me. It appears to be a little soft and the face is a profile shot. The composition isn't the best either (although it's what you had to work with from that shooting position). The composition is a little too centered, although the action is pulling me towards the right and I'd like to see more dead space on the right as a filler (somewhere for this "action" to go) vs the left side where the dead space is in this shot.
Keep shooting. You'll certainly get better with experience (everyone does).