Ropalidia wasp

I think characteristic enough.
 

Crocothemis eryrthraea

This is the Broad Scarlet, frequently found in the NBG_KZN. The bold red of the male and the Golden yellow of the female are striking. In these Gardens there was a dragonfly walk with a delightful booklet guide by Tanza Crouch.
   

Robber fly

A Robber Fly head on, see also previous post on this fly.
   

White-masked Whisp

Agriocnemis falcifera; a tiny damselfly. The white mask is apparent, and perhaps the the falcifera relates to the scythe shaped superior anal appendage.