This is one of my favorite images.
For starters, iris are one of my favorite flowers. Especially purple ones. I also–since early childhood–have always loved sunbeams. This image combines colors I love (purple and green together), slanted light, blurry background, bokeh and the gorgeous tiger striping on the iris petals.
I shot SO many pictures of these flowers in this light before I wound up with something I was happy with. I just re-edited it today to bring up the saturation and make it warmer, which is what I feel it was missing all this time.
Edit: And I never even noticed the little rainbow at the bottom until I posted it just now!!