Stephen,
I like the action. I wish the light was better so that you could have got some more shutter speed for the lion in air. I would give a bit more space at left and right. I guess they were at a lower ground. Else, a lower angle would have been good. Look forward to more.
Great action! Yes, a faster SS would be better. To improve IQ I might consider noise reduction over all and then selective sharpening on the Lions only not the FG or BG.