While this scenario is quite different, the wording in panel three deliberately references an episode of Justice League Unlimited called The Great Brain Robbery.

Spoilers for that episode ahead, obviously.

Hero The Flash and villain Lex Luthor switch bodies (because reasons). Lex, a villainous villain, decides to make the most of the situation by finding out the secret identity of The Flash! In front of a mirror, he lifts The Flash's mask, AND...

Well, you saw the third panel.

Not that it probably would have helped if he did know. Lex is Superman's arch-nemesis, aka the guy whose master disguise is glasses and body language. Or weird psychic alien nonsense or something depending on who's writing and their tolerance for what should be ineffectual disguises.

Personally, I think if you're writing around a character like Superman? Go silly. You can still have heart and characters worth caring about, but if your protagonist is an alien being who can bench press several tanks, have a sense of humor about it.