all of the pictures above are image minipulations. the first one is a real girl that has been photoshoped onto a fake background. using photoshop you can put anyone, anywhere on earth.
the second picture has been minipulated to make a cloud look like a bird, you could use a rubber to make it into the shape you want.
the final one is a picture of an eye that has been made too look quite magical eye, because of the lines in the eye if i where to do this myself i could create an infected eye or some kind of zombie.