Viewing from afar you can hardly tell if there a caterpillar on the leave because of the green colour it posses
What's the name of the insect in the last picture? I was thinking it's a grasshopper
I must say this, the black and white image looks amazing
Yes. It's a grasshopper. These grasshoppers with long antennae, from the Tettigoniidae family are also called bushcrickets, but yeah, you can also say that they are grasshoppers. Crickets and grasshoppers are closely related insects anyway.