We have improved this shot by making the background simpler so it doesn't draw the attention away from the main characters, and it sticks to the framing rule, the cropping rule, the diagonal line rules, and the rule of thirds.
This shot has been improved by taking down the posters so the background is clear, so the focal point remains on the character. The character is also slightly of centre so it doesn't break the rule of an image not being able to be central.
This image is improved by blurring out the background so the character is the focal point, but we can still see where the character is, letting the audience set the scene and to help them understand where it is. The character is off to one side so the rule of thirds applies here.
This image is improved because it is off the centre, therefore the rule of thirds applies here. Also, the background isn't as cluttered and it still sets the scene, and the diagonal lines apply well to the scene (you can see them on the ceiling).
This shot is improved by the simple background, therefore the focal point of the character is not deterred by a cluttered background with posters and so on. The shot has made the most of the space, so no cropping is needed, and therefore the framing is good in this shot.
This shot is better than the original because the background is not busy, but there is still a sign to show where the characters are. The rule of thirds works here because there are no central characters in the shot, they are off to one side.