My complete palette, latest aditions: mauve, indian red, olive green, burnt umber and cadmium orange.

Currently, I have these colours in my paintbox, in this order. I still have four openings (maybe 5, I also have chinese white in a tube) and wonder what colours to add. What colours shall I add? I think I could use some orange, a lighter blue-purple and maybe some darker greyer brown and green. Ideas?