Several years ago, I took the first and only photography workshop of my life--a three-day, intensive course in a specialized form of light painting, taught by a Pennsylvania photographer named Harold Ross. I recommend Harold's blogsite (https://haroldrossfineart.wordpress.com/), but I recently found an interview with him that you also might enjoy, at https://www.photigy.com/school/meet-harold-ross-a-master-of-light-painting/
Gerry
