Step 1

first of all, i had to look for suitable images, so i found one for FOM, computers, MMU students in a library and another picture of students graduating. using photoshop, i used the FOM building as the background, then opened the images i wanted to use pasted them into the background image.
to select the images i wanted from their backgrounds, i used the quick selection tool while holding down the "Shift" key so that i can be able to select the parts that i wanted. since the quick selection wasn't that accurate, i also used the quick mask mode to select the parts that were left out by the quick selection tool.

after selecting with both quick selection and the quick mask mode tools, i had to copy my selection to the FOM background using layer via copy and then using the move tool, i dragged my selection to the FOM background.