That is one epic room. I remember, when I was younger, that I wanted a Wizard of Oz theme... like, an all-out Emerald City painting on my wall... </ramble<

My dad let my brother and I have at our bedroom walls at his house.. his reasoning was, it can always be painted over... same with hers. Though I'll miss that particular mural if she ever decides she wants it gone. She may get "too old for it" at some point...

Have at it.