Happily I got to paint a bit today. I am still working the area on the viewer's left, try to untangle what my eyes see so the petals make sense. You can see on the 2nd lilac on the left I began it with soft shapes because it is on the parameter of the center of interest.
I know this is taking me a bit of time to paint and I hope you continue to visit when an update is posted. I work on it in spurts as I have lots of interruptions and I wait for the paper to dry instead of using a hair dryer. This gives me the opportunity to step back to see if the shapes and values are really working.