06 Now to add an element of 3D perspective to the focal point. Select the Marquee tool and, vertically through the centre of the image, mark an area 1 pixel wide and the height of your canvas. Go to Edit>Define Pattern, then create a new layer and select it with the Rectangular Marquee tool. Now Ctrl/right-click the image and choose Fill, open the drop-down menu, select Pattern and choose the new pattern you just created.
07 With this layer selected, go to Filter> Polar Coordinates to create a circular pattern. This filter can be used in other ways too, and your whole image doesn’t need to be filled. Play around and see what kind of effects you can create – why not try half-filling the pattern layer, for example?
08 You can turn it into a symmetrical circle by selecting the Marquee tool, Ctrl/right-clicking and choosing Scale, depending on the dimensions of the image you’re working with. You can also use the Marquee tool with Ctrl/Cmd pressed down and View>Snap on, to mark a circle out of the centre of the image. Then go to Select>Inverse to delete all content outside this circle.
09 To integrate this element more fully into the picture, I’ve added thin, white-lined circles around the focal point. If you have Snap on and drag guidelines onto the work area, you can snap them as a cross in the centre of your image. This way, if you use the Marquee tool with Cmd/ Ctrl held down, the circles will be centred and look far more symmetrical.
10 Finally, add some particle details by making dots with the Pen tool. Now add blur to the layer, duplicate it, move it, and scale it to a smaller size. This process can be repeated as many time as you like for more particles, but when you’ve finished, merge all the particle layers. To make them blend into the image use a bit of twirl, or add the Filter>Distort>Polar coordinates again.