1. Drag or copy and paste your 3 images on top of another. [x]
2. Select the Rectangle Marquee Tool. [x]
3. Now on the very top image, drag the marquee and do this. [x]
4. [x]
5. Once your done with step 4. [x]
6. [x]
7. When your done with step 6. [x]
8. When your done with your first transition effect. [x]
9. Now for frame number 4. You repeat the process in step 5.
10. Your end result should look like this. [x]
11. Now the beginning of the second transition effect. 
12. [x]
13. [x] Just drag the image a little bit. It should look like how I have it on the capture. 
14. Keep repeating the process. Follow step 5 for duplicating the layers and making them invisible. Each frame should have it’s own layer! 
15. Half way through, it should look like this. [x]
16. Your result. [x]
17. Now for the third transition. 
18. You should have the second image untouched. Then you duplicate that frame .
19. [x] Put the image that you used at the very first step and put it on top of the image that was used in the second transition, if it isn’t already there. 
20. Follow step 5 again but this time, each time you go to duplicate the frame and layer make sure that layer, you make it so that the fill/opacity is more visible in each time! 
21. End result. [x]
22. Where I circled in red, make your images 2.0 secs and the rest of the images (the transition effects) should be 1.0 secs. 
23. YOUR DONE!

Your result you should look like this:

Mine obviously doesn’t look as good because this was my first time doing it and I did it in a very quick pace. If you don’t understand what I did in a step. Feel free to ask me and I’ll try to explain it better.