Lovely butterfly and generally a nice shot. Might have more impact if you crop off about half the flower thereby enlarging the center of interest...just keep enough of the flower to provide the color contrast. Background is a bit busy, less DOF would help.
Nice shot of this butterfly. I wish it was a tighter picture though, maybe done sideways so you don't chop of the wings. I don't think that the flower adds anything to this composition, so get rid of it.