This is one of those rare shots where some old-fashion gear might help, although a similar result could be achieved with software. The colours are terrific, especially due to their pastel quality, but the exposure is bright enough to subdue the chromatic palette. A darker exposure would bring out the colour more profoundly and also lessen the blow-out of the blooms. I fear than control of those highlights might be too much and bypass that sweet spot for best colour. A graduated Cokin filter inserted upside down would reduce the exposure of the blooms, eliminating the highlight blow-out and allowing a slight decrease in exposure to punch the colours of this fantastic insect. Man, when I think of the stuff we used to do to control an exposure that seems so quaint in a digital world. Nice photo though and a good subject for some PS enhancement, especially if this shot ends up in an entomologist’s magazine centerfold. That's a thing ... isn't it?