Photoshop Tutorial: Step by Step

1. I inserted the guide lines by clicking view, inserted each guide individually, fiddled with them to make each box the right size. 
2. I copied and pasted each image into the boxes individually and scaled them to fit in the boxes correctly.
3. Next I added text underneath indiviaual image and changed the size of peice of text to fit.
4. I highlighted each individual piece of text and changed the colour to white.
5. Lastly I then drew a big rectangle ove the image, went to edit and fill and then choose the colour black to put as the background.