Like others have said already, I think on the first should you wanna crop that 737 way tighter, unless your motivation was to get that hangar plus the 737, but then again the 737 is way too small in that picture. For that second shot I have to agree with Qantas332 since it is pretty awesome indeed. Great shot. And then for the third shot, I don't see why it would get badmotiv. It is clearly a noseshot, and what's bad about that motiv, I mean? I think for that one there must be a different reason for rejection. I think it's rather soft in some parts of the picture but you can probably fix that in Photoshop.
Canon 40D + 24-70 f/2.8 L + 70-200 f/4 L + Speedlite 430EX