What kind of photos are suitable for posters? What are the photo requirements for making a poster?

What kind of picture would you choose to accompany the poster? Please explain the reason. If I were to choose a picture to accompany the poster, I would choose a beautiful photo with a meaningful image that is deeply rooted in people's hearts. Because such a poster is very attractive from the image point of view, and it can bring a variety of deep feelings to the audience, thus producing a beautiful effect.

To make posters out of your own photos, generally 60x80 or 90 will do, or pixels from 72 to 100. The resolution of the material should not be lower than 1024. There are places specializing in airbrushing and painting. For posters, the material is: light. What are the requirements for photos if you want to make a poster with film backing? 1. To achieve sufficient clarity, the accuracy of the picture should not be less than 100 DPI. 2. Steps (1) Computer design (picture and text processing process) (2) Screen printing (3) ) Screen lamination (4) Screen cutting (5) Production completed