I am making a 1/2 moon out of RKT covered in fondant. It will sit ontop of a 6" cake.

Looking for color suggestions using an airbrush.

I was thinking:

a little silver
a bit of yellow
a touch of brown

What are your suggestion?

I think I'd go with silver, grays, and maybe some light ice blue... Or maybe just grays and blues, then a light dusting of silver or pearl for shine.