Colored in the other one and a half peonies on this session.
Believe it or not, it really takes quite a while to do one of these in this style. I tattoo the white first (opposite of the standard tattoo coloring logic of going dark to light so as not to muddy your lighter colors) in downward streaks and then edge the color up in the open spaces. Might not sound all that crazy, but it is certainly a bit more difficult and stressful to do it like this (because you really can wipe your dark colors into the white and muck it up if you're not careful). My take on it though is that it's the best way to give it that extra special pop that really jumps off that black background.
This style of coloring peonies is 100% inspired by Horitoshi and his family as observed by me over the years, and really explained well by my mentor Bill Salmon.
I'm very fortunate to have such good friends and teachers in the tattoo world, and clients like this guy that appreciate this style of doing things and specifically request it...