ARtichokes and Lemon on my easel - phase one

I started a new pastel painting today. I am working from a photographed still life set up. The subject is an artichoke and lemons. I am working on Clairfontaine PastelMat. I am working in a little bit different way on this painting. First, I did a value-scale underpainting of the artichoke and the lemons in Sienna tones. Then I blocked in the table and the background. The next step will be to begin adding color to the objects.