https://www.domestika.org/en/courses/87-ghost-light-lighting-technique-and-color-treatment

Learn to take portraits with creative lighting techniques
Ibai Acevedo — a photographer for brands such as Nike, Microsoft, Tous, Evax and Mahou — helps you find your own style when taking photos by experimenting and expressing emotions.
To do this, he shows you step by step his working process when creating a portrait by playing with an unconventional lighting technique with many creative possibilities: Ghost light.
After taking the picture, Ibai explains his retouching method to achieve a light and colour effect in certain areas with a dreamlike aesthetic that oscillates between reality and fiction.