"Holding anger is a poison. It eats you from inside. We think that hating is a weapon that attacks the person who harmed us. But hatred is a curved blade. And the harms we do, we do to ourselves."-Mitch Albom
if he ment that he drawed the line, or the glowing parts or the actual body etc.
states that he only added the glowing lines.
He didn't say they were done with a brush, just via mouse (though the implication of needing a tablet does suggest brush).
I want to like it, I really do, but there's just something off about it.
Maybe it's because the lines are placed (what seems like) randomly along the body, or maybe it's the way too abrupt color change.
Either way, if you fixed either of those problems, it'd be great.
Try making it all blue? Or added a purple-orange gradient map?