Spent the whole day working on this.
Inspired by YoshiStar's stunning SMG2 box.
The Mario/Yoshi render is custom made (pasted different heads).
The rating will be changed of course.
As always, please leave critique.
Edit Rosalina a bit more to make her look like the Cosmic spirit. My suggestion would be darkening her into a dark blusih color, taking out her pupils, and overlaying or color/linear burning a star field over her.
Also, thei nner glow on Luigi is a bit overwhelming. Other than that, I love where this is going.