Take the next tool and represent several stripes of black color, between the teeth.

Create Valentine?s Day Wallpaper in Photoshop CS

Take the next instrument and represent a flare on the upper part of the ball.

Create Valentine?s Day Wallpaper in Photoshop CS

Fill
0% on the layers.
Blending Options-Gradient Overlay

Create Valentine?s Day Wallpaper in Photoshop CS

Gradient?s parameters:

Create Valentine?s Day Wallpaper in Photoshop CS