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The plane of focus seems to be the cap/glove ... assuming face was target focal point, so not that far off giving the dynamics of involved with this kind of shot. I know what it was like shooting manual focus for women's fastpitch.
Diggin' the muscle tension in the forearm ... yearning for a bit more dof to range from the arm to the face. Could shoot @ higher ISO with plenty of light available (i.e. noise not a real issue from the ISO bump) and get a bit more DOF @ 5.6 or 8. Just food for thought if your target comp is to be so "stretched out" over a wide dof plane(s).
Also, curious how a shallow DOF of his forearm, might look with his body/glove/face oof behind it. Of course, that'd be a trick to pull off, but I see you've got the right gear for it (D2X). Overall, the oof forearm doesn't bother me, but I do wish the sharpest part was his face rather than his cap/glove. It looks like a "near miss", but you could probably selectively soften the glove/cap a touch and sharpen the face a smidge to offset the "near miss".
Nice job on replacing the ball ... reminds me of our discussions with Ben about trophy shot vs. plausible realism. This is a very nice case of HIGHLY PLAUSIBLE REALISM that would be hard to find a "tell" in. I might consider dropping the ball a bit lower than level with the bat though. The grunge look gives it a nice throwback (60's/70's) vibe. The "peak action" in this is pretty killer ... the catcher's shoe, mask, forearm muscle and the batter's facial tension and trailing shoe ... pretty sweet, imo ... if you're into the details.
Took a stab at the bg ... not as good as natural dof would be, but you get the gist. BTW, the action in the second one takes place in more of the 'same plane' ... that coupled with the wider FL, you probably could have gone between f4 & 2.8, unlike the pitcher where the action was come through multiple planes (plus the greater compression of the FL) and a move toward 5.6 or 8 might be something to try (depending on your objective).
Just a few micro-nits for future thought ... certainly nothing that takes away from the vibe of the pics.
Thanks for sharing ... Spring Has Sprung ... WooHoo !!!