I thought this Bush Cricket looked particularly interesting, almost like a hand written signature!
Larger on 500px
It's carnivorous and though it looks like a grasshopper it prefers to eat grasshoppers rather than grass.
The nasty looking spike at the end of the abdomen is an ovipositor used to place eggs into the soil; not a fearsome stinger. Typically they hunt at night and during the day, rest on branches and the like pretending to be leaves.