Stargazing Navigator - Limited palette

This is my challenge piece for Monument Hobbies monthly challenge. It was a limited palette of Jade, Bold Pyrole Red, Faded Plum, White, and Black. Was really excited for this challenge but once playing with the colors it started to feel a very lopsided, no truly cold colors or saturated warm colors, the values of the 3 colors are pretty similar too. Made it it work though. One nice thing was we were allowed to use any mediums, so metallic medium was available to mix out own metals. Do plan to go back with a full palette to redo parts cause I move this bust and want it to a level I'm truly happy with.