Soft Glow Effects

1. Open the image, CTRL + J to duplicate the image and rename as light.
 

2. Go to Filter > Blur > Gaussian Blur > 3px. Press “D” to reset the color mode to default
    (black foreground and white background). Go to Filter > Distort > Diffuse Glow and
    set the Glow and Clear amount to 18. Graininess to 0. Set the layer opacity to 60%.

3. CTRL + E to merge both layers. Go to Filter > Sharpen > Unsharp Mask.
    Set as below. Repeat 2-3 times to get the best effect by pressing CTRL + F.

4. Create a new layer and rename as light. Grab the Polygonal Lasso Tool and
    make a selection as below. With Radial Gradient set foreground color to white.
    Drag it from top to bottom as shown. Go to Filter > Blur > Gaussian Blur > 60.

5. Reduce the layer opacity to 50%. Naahhh .... As below the end result! Enjoy.