What preparations should I make before applying for a photographer in the studio?

If I guess correctly, you have less work experience, especially in the photo studio. All over the country, no matter where, photo studios are individual stalls, and most of them are not interested in your works and awards. We only care about whether you can bring benefits to the studio, understand the guests and drive them to spend. If you haven't worked in a photo studio, I'll give you a suggestion. You should apply for a photography assistant. Studio photographers are not that simple, they need considerable communication skills and a lot of beauty accumulation. I don't think it is a good choice to apply for a photographer. In fact, in the studio industry, most photographers are from the studio. Only small and medium-sized studios use photographers, and big stores mainly dig people in the industry.