Hi! When you're tagging things as "sexually_suggestive", what it means is that the person in the photo is doing something which *implies* something sexual, but actually it's totally innocent.

This photo is just a woman posing, so not suggesting or implying anything.
Compared to an image of say, a woman sucking a banana, or something like https://idol.sankakucomplex.com/post/show/604805 which is a gif of a woman moving her hand up and down. It's innocent, but it's implying something sexual, so sexually_suggestive!