I am not impressed with images of a girl who looks like throwing out a brownie. I have never ever seen this composition in any food advert and I am sure there is a sold reason for it. A girl with a brownie in her open mouth simply does not look attractive, it sends you a wrong impulse. I think the reason is because if you want to show a process of eating a brownie the most unfortunate or unpleasant moment is when it is stuck in her open mouth. NO girl would want to be seen like this. It might be technically perfect, to me it does not matter, because the idea, in my view is disastrous. When she holds the brownie, it is ok, but Nos 1,3,4 are just wrong as a food advert in my view.
And compositionally - the brownie is tiny ! I would like to seee a close-up portrait of this beautiful girl smiling and holdin a brownie close to her mouth as if the next moment she is going to gobble it, but do nit show the moment itself, it is not aestetically pleasing, show the moment of anticipation.
The shot with the guy I good, but not as a brownie ad, again, it is small and one has to guess what the hell is this brown stuff..