Here is Photoshop tutorial on how to make a soft glow and change the lighting of your photos. It's really fun and easy to do.
tutorial.
2. At the top, click “Images,” then scroll down to “Adjustments,” then down to
“Brightness/Contrast”. Change the brightness to approximately 50%. If you have a
really white, bright, or over-exposed photo already, then you can skip this step.
3. At the top, click “Layers,” then scroll down and click “Duplicate Layer.” A
little box will come up. Click “OK.
4. At the top, click “Filter,” then scroll down to “Blur,” then down to “Gaussian
Blur.” Change it to make the Radius: 25 pixels.
5. On the side box, under “Layers,” at the very top there is a box that says
“Normal.” Click this box and scroll down to “Multiply.” Great! You are finished!