The story here is that this lion was one of a pride of lions which had 5 cubs about this cub's age - and in this case, the lioness was escorting this cub which was not her own, back to the river where the others were. Zebra was being served.
This elephant matron and her yearling were capturing a moment of calm before rain pelted everyone about 3 minutes later. In such circumstances, the light before a thunderstorm can be quite striking as it was here. These elephants are living under such stress from poaching, one cannot look and wonder how long they will be around.