I just completed this oil painting 10 minutes ago. Last summer, I was taking a brisk walk along Leona Avenue in south St Louis. Just south of Bates Avenue, I happened upon a back yard with big red dahlia’s and red roses. There was a black wrought iron fence as well. I was entranced by the abstract pattern of light and shadow on the sidewalk cast by the fence and the plants.
I painted the flower itself in transparent glazes. The layers are: yellow, light red, rose, green, violet, and blue. My palette consisted of Permalba white, cadmium yellow medium, cadmium scarlet, quinacridone rose, purple madder, ultramarine blue, chrome green deep.
I made use of the color pooling concept. I put subtle red and green glazes in the shadow areas, and on the darker leaf sections. I put a layer of green glaze on the flower in the shadow area to subdue the red slightly. I also included red in the sunlit areas of the sidewalk and the ground. This unified everything, and renders the reflection of color in the surrounding environment.