You've probably already considered this, but a subtle graduated filter (as found in Lightroom) would help tame the brightness of the bottom half of the photo, thereby guiding the eye up to remain with the spectacular (sorry, magnificent) hummingbird.
How do you do it - the hummingbirds around here (southern Ontario) never seem to alight on anything except branches in the dark depths of honeysuckle bushes or cedar trees.
It really is another wonderful photo, Glenn. Thanks for sharing!