Good detail in the butterfly and flower, and I like the angle and the position in the frame (although a diagonal might have made a more pleasing image). Good depth of field also. If you could have positioned yourself a little lower, so that the butterfly was against plain sky, rather than with bits of leaf/twig behind it, that would have improved the pic. The butterfly body could also do with lightening a bit, as some of the detail is lost in the shadow. I'd be tempted to get rid of the two half-leaves on the right-hand side, but cropping might spoil the proportions (rule-of-thirds). Hope this helps.