A tighter crop might take some of the clutter out of the photo.
EXIF:
Camera: Canon EOS 20D
Exposure: 0.004 sec (1/250)
Aperture: f/9
Focal Length: 210 mm (Sigma 150mm 2.8 plus x 1.4 extender)
ISO Speed: 400
Exposure Bias: 0/2 EV
Flash: Flash fired (Canon 420EX)
I really like this one M8. I have to disagree though a tighter crop to me would leave take something away. The not so pristine flowers seem to make the Butterfly stand out even more.
The butterfly looks fantastic, though I would be tempted to crop a little
closer as the flowers create too many other focal points to draw the
eye away from your main subject. Nice work.