At this stage I'm working on my color palette. I tried black, mixed with my two whites for the shading and didn't like it, so I added some violet, and voila, there's my dark color.
Still working on my yellows for the center area. I'll need three different shades.
Laying in some of the dark areas, just to keep them in mind as I progress.
Already looking like my white poppy, with another smaller flower in it's shadow. I'll be doing a bit more today, and post tomorrow, then we'll see what the difference is.