The Latest Iris Painting in progress

I took that little Iris photo out in my back yard a few months ago and played with the idea in watercolor a time or two (there'd be pictures of those in old posts) before moving on to trying it in acrylics on canvas. I'm happy with the sky so far (instead of the tall grass and weeds in the photo) but haven't quite been able to get the petals on the flowers to look as if they're bending in all the right directions. I may move on to painting the stems and leaves before going back to work on the flowers themselves. How am I doing so far?