Prep for paintings

This is my tests before i began painting on a ground on my 4 canvases. I did for quick colour boxes as i wanted quite a rich tone of either yellow, orange or an earthy colour for this as it would make the skin tones of my figures more vibrant. I decided that an earthy colour like the one in the botton left colour box is what i am going to make, and to make a steely blue/grey and blue/green for the baground with plays of yellow/white light over it.