Top Left: Giant African Mantis (Sphodromantis viridis)
Top Right: Desert Mantis (Eremiaphilidae sp)
Bottom Left: Cone-headed Mantis (Empusidae family)
Bottom Right: Egyptian Flower Mantis (Blepharopsis mendica)

The bottom two are in their nymph stage.

You can learn more about the Egyptian Flower Mantis in this post.