You will need two photos.
An apple photo and an outdoor pic. 
 

Then, select the outdoor photo and release it into the apple photograph layer.
You can also Copy and Paste it:

After doing so you will need to give that outdoor pic the shape of the apple.
So lets go to: Edit/Transform/Warp:

Then, start warping the outdoor pic:

Now we will need to give this outdoor photo a Lens Flare effect:

This is how its looking like:

After that, lets give it an inner and a drop shadow:

 
After that, we can add more pics to our apples.
Just do all over again with each one as you did with the first one.

This is the result:

Enjoy!!