A red mini with waist openings shows an apparently strapless upper edge and two horizontal uncovered areas separated by a narrow red strip.
The two horizontal spaces make middle-area placement a separate question. Decide whether you want both lines or mainly enjoy the uncovered shoulders. You can choose those ideas separately and look for another version. A photograph does not require adopting every visible feature as one complete package. Start from your own preference rather than the strongest pose in a reference.
In an ordinary stance, look at the distance between the edges. Sitting adds information that this image cannot supply. Decide for yourself whether you like the changed position. A general claim about particularly suitable body shapes would not answer that personal boundary question and does not belong in the selection.
Try the intended bag strap and outer layer as well. A strap crossing an opening creates another line. The top edge in this photograph cannot establish secure holding. Check the real construction and carry out the movements you genuinely plan for the evening, including putting on the chosen outer layer.