Ocean Photoshop Tutorial

Create new 500x500 transparent document.

Filter->Render->Clouds
Filter->Stylize->Find edges
Image->Adjustements->Invert

Image->Adjutement->Hue/Saturation use these settings:
Colorize-checked
Hue: 190
Saturation: 100
Lightness: +15
Now zoom out image (ctrl-)

Edit->Transform->Perspective

If your layer is locked you should double click it on layers palete to unlock it. Drag bottom corners like this:

New layer.

Filter->Render->Clouds
Filter->Stylize->Find Edges
Image->Adjustements->Invert
Image->Adjustements->Brightness/Contrast
Use those settings:
Brightness: 0
Contrast: +90
Now, edit->transform->perspective just like before.

Set blending mode to lighten, screen, or exclusion, whatever you like.

Final results:

or