First, you should wear warm clothes, and then you should dress up in a beautiful room. But no matter what, your other half can't be more beautiful than the bride, or she will hate you for life! You can't wear red, you will take the lead, and white is unlucky. The rest depends on what you have!
Don't clash with the bride! This is a taboo for newcomers! If you really can't make a good picture, let the wedding company provide bridesmaid clothes!
1) color, the bride's wedding dress must be white, and the evening dress must have a red dress or cheongsam, so try not to be the same color as these two colors. Pink, light blue and light yellow are all good choices. Try not to be flashy. After all, the bride is the protagonist, not the flower pattern. Even if there are flowers, they are big or dark, which will be more atmospheric.
2) Style, the winter style is relatively simple. Most of them are pants. As a bridesmaid, you can't dress so simply. You're going to sacrifice anyway, so consider the skirt. I suggest you prepare a pair of boots and a pair of shoes, because you may have to go on location shooting, so you must wear boots. When you arrive at the hotel, the air conditioner will let you enter the spring, it will get hotter and hotter, and then you will play with your shoes.
I hope this helps.