Very elegant, I really like the composition and the colours are visually pleasing. Nicely focused and I like the DOF as it is, the way the right wing fades away makes for a dramatic presentation. The two antennae are sharp and this is not a common occurrence especially in a relatively large butterfly. A minor issue but maybe lower the brightest highlights in the lower part of the flower.
Hi Stuart. A very colorful butterfly giving you a great pose! Good sharpness where you most need it and good detail in those pesky yellows. Because the flower is facing away to the right, I might suggest cropping a little off the left side of the frame. On my monitor, the background greens look a little oversaturated - you might back off the green saturation a few points to see if you like that better. Overall, this is very nicely done!