[name]Welcome[/name] to your little rockstar! It sounds like you got everything you wanted into her lovely name, and I’m so glad you found something that you’re happy with and that suits her. Best wishes to all three of you! 
Wow! What happy news! Thanks for letting us know about [name]Petra[/name] [name]Estelle[/name]-[name]Marie[/name]! I love her name, and am thrilled that you found something so beautiful!
(Your little rockstar. I love it!)
Best wishes to you and your family!
Congratulations on little [name]Petra[/name]. I love her full name!
[name]Lucasta[/name] nickname [name]Lux[/name] comes to mind as a full alternative to [name]Lux[/name].
Congratulations and well done! If I ever have a little girl, [name]Petra[/name] is a serious possibility.