The first two pictures are of the S size, and the third and fourth pictures are of the M size. I’m really confused between these two sizes because I feel like the M is looser on the sides, while the S enhances my waist better.

The first two pictures are of the S size, and the third and fourth pictures are of the M size. I’m really confused between these two sizes because I feel like the M is looser on the sides, while the S enhances my waist better.