You're the queen of butterflies. :) The complimentary colors of the background and flower work well as well as the angle and placement of the butterfly within the composition. Beautiful light.
The combination of colors is so beautiful in this image. I can see what Randy means about the depth of field but the strength of the colors wins the day for me.
Okay, that one got me going! Darn it...I still have two more weeks until the butterfly festival at our local botanical garden!
These are one of my favorite butterflies and you got a gem here. Love the orangish body against the red and yellow of the flower. What an impactful image!