The white peony dilemma

White peony 

watercolor 

7.9x7.9 

$130 

This is today's peony steps one and two. I think I am seeing more value shapes this year.
The white ones are super challenging.

Here is step one. It has a freshness but not enough value range.
Quest 2014 so far.

What I have learned so far: 

You must leave white paper white. Once you paint it there is no going back. Move carefully and step back often.