CUUUUUUUUUUUUUUUUUTE!
That's actually what I was going for, since Dream can also use negative energy now. Maybe I'll add a flicker of yellow in the middle of the purple glow, or maybe vice versa is better? As for the dramatic lighting... I'm still figuring out how to do glow effects in Paint. Maybe when I actually get around to making the comic, I'll have enough practice under my belt to do that.