Thanks @beinart!
It's digital. Whereas I must add, I have my issues with that term because it is used for anything and everything, so that it has become practically meaningless. Simple photo-manipulations or collages, computer-generated art, and it all gets the label "digital art". A few brushstrokes over a per-existing image and some call that a digital painting.

My digital pieces and hand-painted, from scratch. I never use any filters or anything of that sort. When working digitally, I paint on a Cintiq, and I do so in much the same way as when I work with acrylics or when I draw.