So the other day I was trying to figure out how to do something in Pixelmator (Im pretty sure it works for Photoshop) and I accidentally stumbled into this effect.
First, I opened up an image that I wanted to spruce up.
Second, I Added a Layer Mask in the Layer Menu
Then, I used a Transparent to Black Gradient and got this:

Why is this cool?  Well, now you can add a nice background color or even another image in the background to make some very professional looking artwork! 🙂

The original idea I was after was from a tutorial I found online which took a picture, such as this one. Â You take a picture such as this:
Add a Layer Mask as before but this time choose Brush 100 with a black foreground color. Â Eliminate everything around her by painting with the brush to get this:
Cute huh!
Now create a new layer and Add a Gradient, preferrably one with 2 pastel colors and move it over this one:
Finally change Blending to Screen and voila!