Help with shadows and highlights

Hi, I’m new here and I’m looking for some help as I’m terrible with shadows and highlights.
Could someone help me improving this piece, please? Where would you place the shadows and highlights?

You have them placed correctly in a simplified flat sort of way. But don’t use gray for highlights. use an even lighter form of the pink.

Sorry, PrintDriver, but I have to disagree with you on this one. Since a large portion of my career was creating TV commercials, my lighting crew would often use blue-light highlights on occasion instead of standard white-light Keys. The highlights used here seem more blue-white than gray, and in many cases, would be perfectly acceptable.

I guess this would depend on whether the lighting was meant to be harsh and garish, or if the toning for the highlights was supposed to be as subtle as the shadows.
What they have here isn’t wrong. Just really “hot” (or cool really, but in a hot-spot kinda way.)