Here I’ve created an underwater explosion scene using the tutorial I posted above except I didn’t use the part that shows the radiation point. On the next layer (water displacement) I used the same tutorial except changing the colors to 9BDBDF and 256577 respectively. Using a soft eraser tool on the displacement layer to let the explosion show through. I then used another tutorial for making a bubble brush in Photoshop: [Bubble brush Tutorial](http://fx.worth1000.com/tutorials/161173/tutorial) and using my wacom tablet I painted 2 layers of bubbles. Finally on the very top new layer I filled it with a sea water color 508968 and reset the layer mode to hard light.