I really like the idea behind this, but it could have been executed much better.
Having an adult being birthed has a lot of potential. The problem to me is his smiling face.
Picture rather some added makeup where he looks like he's just coming from the birthing canal; all gooey, wet, and a pained expression of having to enter the world from the safety of the womb.
Also an extremely painful looking woman giving delivery would have added to the fright and extreme factor. Great idea for those who add some of the touches mentioned.