Warren I feel the wave just above the birds heads should stay and the crop should be betwixt that and the base of the uppermost breaking wave,this is in image two Warren.
The first image I find much more tricky I would cut at the base of the brown wave,I feel one couldn't go lower, though, as the birds are getting dangerously close to edge of frame then.
Ahh buddy it must have been super to see: I'd have been completely caught up in the moment and made a complete hash of the pics
I'm utterly hopeless in that way,but I'm on a mission to get so familiar with my camera that one day I might be able to get over myself,it'll be a long time coming though. That in part is why I admire these so much.
It's the big challenge being so quick in getting everything right when nature bungs these gifts at us,all credit Warren !!
take care
Stu