Double Primary Palette

I used a double primary palette while I was experimenting with primary palettes in order to decide how I wanted to organize my next book. I ended up using a single primary palette. I thought I could get almost as many colors out of three colors as six. Now I'm wondering if these flowers need a bit more detail? I'll look at it tomorrow and try and decide!
"Flower Etude" watercolor on board, 4x3 inches