Step by Step

Step 1: I make a new A4 size layer, colour background (navy blue) as a background. I use 'Rectangular Marque Tool' and 'Elliptical Marque Tool' to select the pictures and hold 'Alt' to copy it into my new background. Then press 'Ctrl T' to resize the pictures.

Step 2: For the FOM monument, I use 'Polygonal Lasso Tool' because I only want to select the blue area. Then, hold 'Alt' and drag it into background file.

Step 3: I use 'Line Tool' and 'Ellipse Tool' to make the line that connecting the FOM monument to each pictures.

Step 4: Select the pictures layer (except FOMcafe layer) and I change the 'Blending Mode' to 'Hard Light'. Now, the pictures look darker than before. For FOM monument layer, I set the blending mode to 'Lighten' to make the picture more bright.

Step 5: I use 'Horizontal Type Tool' and choose ISOCTEUR as font for the text (Date and Tagline) and Footlight MT Light for the title and I choose gray for the colour.

Step 6: To select MMU Mascot, I use 'Quick Selection Tool' after that, click 'Selection Tool' and hold 'Alt' to copy and drag the mascot into wallpaper. For MMU logo, I just drag it into the wallpaper.

Step 7: Select the background layer, click 'Filter' at menu bar, choose 'Render', 'Lens Flare' and change the brightness to 60%. Finally, Clicked twice at the background layer to change the layer style, I add 'Inner Shadow' and 'Bevel and Emboss' to make my wallpaper more interesting.

p/s: please correct me if i do wrong