I said Quality and All Over Look.
Quality because that's a given. A clear bright picture is going to be more eye catching and definitely more enjoying to look at than a dark, blurry grainy one.
All Over Look because what the picture includes is important. The background, the framing of the subject, the content of the subject, the colors, the size of the picture, the pose of the subject, the facial experession, the action of the moment, the story the picture is telling.........it all matters to create a good picture.