Step 11 - Blurring
Nearly finished now...we just need to add a slight glow to it.

Make two copies of the pictures.

To the middle one you should apply Filter > Sharpen > Sharpen and set the layer mode to Lighten.

To the top one apply Filter > Blur > Gaussian BLur with a radius of 2.5px and set the layer mode to Lighten.

Your layers should look like this now.