Some very nice folks on Fiverr asked me to design a banner of Kim Kardashian for a project of theirs. They gave me some samples with abstract backgrounds, so I nodded and thought about what would be fitting while also making this job worth more than five bucks.
And that, your honor, is the reason the background is a baby's skeleton.
Actually, I went browsing for textured backgrounds or a decent public domain photo I could filter, and that skeletal baby was on the front page. I just work with the materials I'm given, folks.
Speaking of which, that photo copyright somebody. The client furnished it from a license.