Create a new document: File> New (400 width, 200 height).
Fill the background layer with 50% gray: Edit> Fill> 50% grey.

Create a new layer. Insert anything you like here - I put some text for this example. I used Lighting Effects on the text to give it a 3-d look: Filter> Render> Lighting Effects

Create a new layer above the text layer. Fill it with white: Edit> Fill> White.
Filter> Render> Difference Clouds - make sure black and white are the foreground and background colors [D] before doing this: Image> Adjust> Equalize... Then do some more 'Difference Clouds' until you like this cloudy layer. White Layer after Difference Clouds Filters.

Change the color of the layer by adjusting the Hue/Saturation: Ctrl-U. When you have a color you like click OK. Move the 'Opacity' slider for this level to about 60%.

Create a new layer above all other layers. Fill it with white. Hit "D" to restore the default colors. Then do a Difference Clouds, Equalize, and a few more Difference Clouds. Use a mezzotint filter: Filter> Pixelate> Mezotint, small dots.
Then Select> Color Range, use the eye drop to choose the one of the lightest part of this level - this should change the foreground color to this color. Now do a Select> Similar .....Invert this selection: Shift-Ctrl-I.......Delete......Ctrl-D to deselect..... Now change the layer opacity to about 50% and drag the whole layer to just below the text layer.