For our convenience, we should merge down all the layers in a group, containing the small heart.
Make two copies of this group and make use of the Free Transform selection to minimize the copies and turn them on the necessary angle.

Create Valentine?s Day Wallpaper in Photoshop CS

Take this tool to draw now a pink ball.

Create Valentine?s Day Wallpaper in Photoshop CS

Blending
Options-Outer Glow

Create Valentine?s Day Wallpaper in Photoshop CS

Blending Options-Inner Glow

Create Valentine?s Day Wallpaper in Photoshop CS

Blending Options-Gradient Overlay

Create Valentine?s Day Wallpaper in Photoshop CS