I like what you tried to capture here - I just wish the leftmost bird's HA was better, or at the very least a better view of the eye. With the birds looking in opposite directions you can crop this at left to make the subjects centered without any issues. Looks like you had nice light!
Interesting shot. I concur with Daniel's points. I don't know much about Bee-eaters -- is this a known pose where pairs face opposite directions (defensive??), or just a lucky coincidence?