Allen, your image brings me a calm and soothing feeling. The colors are very pleasing, especially with the soft BG. The sharpness throughout the whole image is fantastic. Having the perspective you used allows you to get the entire butterfly in one focus plane. I truly do not see anything I can offer to make this image any better. You have yourself a beautiful image here indeed.
Allen, I agree with @Egídio that the image brings a calm and soothing feeling. Wonderful details in the BF. I too cannot think of a thing that might improve it. Well done.