Choosing the same instrument and the same clich? (the heart), represent one more figure ? the heart.

Create Valentine Day Background in Photoshop CS

Blending Options-Outer Glow

Create Valentine Day Background in Photoshop CS

Blending Options-Gradient Overlay

Create Valentine Day Background in Photoshop CS

Gradient?s
parameters:

Create Valentine Day Background in Photoshop CS

Copy the new made layer and then apply Free Transform option to make it smaller a little, turn it around and place it exactly the way it is shown in the picture below.

Create Valentine Day Background in Photoshop CS