How to Paint Cala Lilies

I do not love all Lilies, but I do love Cala Lilies. I planted some this year, and they should be blooming soon. Yesterday, I was at Walmart, and I bought a wooden keepsake box. I think I am going to paint Cala Lilies on it. I have never tried the stroke shown below, in the video, so I will have to practice before I attempt it on the box. I will share when it is completed. I am still working on the red and black diaper cake. It probably won't be complete for another week. I really need to sit down and make some new jewelry pieces too. What have you been up to?