Press on the Alt button and click between the layers, while the Alt button is pressed. This way the mirror-copy will be transformed in a mask of the basic layer.

Create Abstract Wallpaper in Photoshop CS

Set the Soft Light on the layers.

Create Abstract Wallpaper in Photoshop CS

Select the next tool and represent on a new layer (4x4 px) a texture's clich??, colored in BFCBD9.

Create Abstract Wallpaper in Photoshop CS

Save
it!

Create Abstract Wallpaper in Photoshop CS

Create a new layer and apply on it the earlier saved clich??.

Create Abstract Wallpaper in Photoshop CS

Select the earlier saved clich??.

Create Abstract Wallpaper in Photoshop CS

Create Abstract Wallpaper in Photoshop CS

The picture is finished!

View full size here.