I thought for sure this profile image was a step less creepy than the last.

Well, I guess that's Kevin Barnes for you.
You've brought up a very interesting point actually concerning the imagery, but to me, I think Kevin Barnes lives in a very childish world. That's not a negative comment, so much as an observation about what kind of fantastical, high energy band he leads. For an example, the entire unit plays dress-up every night on stage and performs an R-rated children's book. It's self-indulgent and nonchalant, and I think he just likes to combine the best of the adult and kid worlds for himself. If I'm being honest, I envy their stage show, and I think this is one of the most-fun looking bands performing today.