Source: Create a aqua style wallpaper in Photoshop
Open new document in Photoshop with the size of 1600px X 1200px and background color is #4990c1.
first choose foreground color white then Select the pen tool and draw like this:

Decrease fill to 30%

Now right click on layer then go to blending options:



Create a new layer and then select both layer and right click merge layers:

Now add layer mask:

Now choose foreground color is white and background color is black. Then select gradient tool and choose radial gradient:

Draw like this:

Now select pen tool then draw like this:

make all setting like first one.
Then it’s look like this:

Make copy same layers and scale the size and position of the layer. Try like this:

Now make new layer and select gradient tool and draw center to right. then change layer option to overlay and change layer opacity to 30%. It’s look like this.
It’s final result:
