Double click the layer to open layer style window. Apply settings as shown.







Duplicate this layer several times and create a square using the rectangular shape tool.



Double click the layer to open layer style window. Apply settings as shown.








Insert product image right above the square shape layer in order in the layer palette. Press Ctrl+Alt+G to create a clipping mask.



Similarly, insert more product images. Place them as shown in the image below.



Type navigation links over these irregular rectangle layers.



Insert company logo and place it on the top left.