I had to race time with the petals on this one. In fact every time I try to paint tulips they all tend to move a lot. When I brought these inside they were closed and with the heat and light in my studio they started opening. I actually put a different light on this one, hoping that it would slow down the change. This is about mid-point and actually once I finished they were completely open. So, I didn't get a great chance to go back into the petals, and just left them as they were. But...I'm still happy with this.