Stamp your next furthest image where you would like it as the picture below shows. Continue with masking your next layer if you wish to add more images as I have done with the mountain in the background.
The finished item. You may notice a slight gap around the lady, I didn't cut close enough which will leave a gap like that so its important to cut as close to the lines as you can.
Here's another example of masking that Lisa did for our stamping challenge 7 without the gap so you can see the difference (plus she did a better job of it lol!)