Photography, the background is very simple, do you still need to blur the background?

The blur of character photos is a kind of expression technique which aims at highlighting the main body of characters, screening out the surrounding messy environment and increasing the sense of hierarchy. Some people's photos are not so vague or empty, such as wedding photos and souvenir photos. Because if you want to highlight the environment in which the characters live, blurring will go against your willingness to shoot, so whether a photo needs blurring depends on what kind of creation the photographer wants to show.

Your description is not very clear, I can only simply understand the three photos described for you.

The first one is a beautiful woman on the green land. If you don't need to explain the environment, you can blur the background with a large aperture.

In the second monochrome curtain, the rich figure must be in the studio, and the background is the same, so there is no need to blur the background.

The third model in front of the Parthenocissus Wall can blur the background and highlight the characters because it doesn't need to highlight the surrounding environment.