Fill 0% on the layers.
Blending Options-Drop Shadow

Create The Star desktop Wallpaper in Photoshop CS

Blending Options-Inner Glow

Create The Star desktop Wallpaper in Photoshop CS

Blending Options-Gradient Overlay

Create The Star desktop Wallpaper in Photoshop CS

Gradient?s
parameters:

Create The Star desktop Wallpaper in Photoshop CS

Blending Options-Stroke

Create The Star desktop Wallpaper in Photoshop CS