I love it!
I did something similar on a much smaller scale. I am a huge Simpsons fan, and I wanted a Maggie, but I am not a fan of the name Margaret. So I named her Magdalena, so I could still have a Maggie. I painted some wooden letters, and made up a hand cut/drawn Maggie Simpson in a "superstar" pose before the lettering. For my daughter Sofiah, I didn't name her after any type of character that I am aware of at least, so I used the Princess Daisy from the Mario series, and did essentially the same thing with her name. We took them down for the move, and I haven't put them back up yet since we are going to paint their rooms this fall anyways.
I tried to convince The Wife to let me name our second Sophitia, but she wouldn't got for it. I didn't tell her why I wanted that name though. . .
