Keep clicking. That's a fantastic shot.
I once attended a seminar (in the days of film photography) given by a NatGeo photographer. I asked him afterward if he had any hints for an aspiring photographer. All he told me was to "shoot lots". He said that for every photo he got published, 4,999 that he shot didn't make the cut.
So if that's how it is for the real pros...*click* *click* *click* *click*
(and hope for the best)
But don't sell yourself short. You saw that shot...its potential. And executed perfectly!