No Photoshop here ;-)
Most of the time all i do is just a bit of Lightroom - cropping, brightness, color correcting and white balance - here not much has been done at all. The light is originally done by my hands waving a tube in the air.
There is that video i made about the tubes i use for that: https://www.ntopaz.com/artwork/20465
The performative part is what excites me about this art form.