I'm with you Thusie. My only feeling is that the huge cloud on the left overpowers the entire scene. The whale should be the main subject to me, but my eyes keep darting to the cloud.

I'm so glad SS is here to make suggestions on possible fixes. I had/have no clue on this one.

Are the clouds composites? they seem a bit large for a distant horizon -- just a guess though.

cropping left and a bit of the bottom would probably bring more attention to the whales and not have us stray as much towards the boat.

Might look better with just the sailboat.

Hum, what did you do different? The 'blow' looks more like a.....Hosed up spot in the shot? Like the sail boat in the distance just not enough whale to make it a whale shot?