Good job, Daniel -- hard to argue with the results. As others have suggested, your low agitation compensated nicely for the overly warm developer (though with other films, you might have had real problems; I think the emulsion might slide right off J&C Pro 100 if you developed at 85 F, though I've done Tri-X at 90, once, with good results). Even so, to my eye those negatives look a tad overcooked, but not enough to be a big problem; print with a #1 filter and you'll be all good. Certainly not bad for a first effort -- and clearly not the first you've shot; the images themselves show a well trained eye and familiarity with the camera and the methods of available light.
Now, go make some masterpieces!