My word, MS Paint. A program that I can barely manage to form a wonky line on. Even that generates difficulty and frustration, haha. :P
I'm especially drawn to the way you've painted the collections of cloud and fog beneath the figures, the flame from the torch and the vertical pattern/motif attiring the dark robe of the deathly figure on the left. This must have taken bags of patience. For that, I highly commend this piece. Quite rightly featured, too.
5/5