I wish I knew more the story behind this, but I get the feeling that the skull is the elder adn the slasher is the boy.
I made me immediately think of "Mystery Men" and the Legacy Hero "The Bowler" who was the daughter of a superhero who would fight crime with bowling balls, and when he was killed for it, she put his skull in a bowling ball.
That movie is pretty memetastic, especially since the official music video for "All Star" by Smashmouth is a tie in to that movie.
Anyways, I get the sense that older figure was maybe a scientist from the gray heir, and perhaps had an experiment that rendered him into this weird form with his kid?
Like a much grimmer Danny Pantom.
In any case I love the otherworldly flow of the mist, and the sense of dark reflection in the foreground.
Thank you for making this, and for sharing the characters.