A very cool array, EJ. Superb detail in the flowers and I love the insect getting a drink-so appropriate for cacti. Given the flow of the image, I think you might want to consider less room on top and more on the bottom and left.
A refreshingly different take on cactus blooms! Detail, tonalities and color are very nice – great lighting! I agree with Dennis’ suggestion of a little more room, but very nice in any case. The upper spent blossom could have been an easy candidate for a quick focus stack.