Looking at this and the parent post side-by-side, this is more than just a crop. Marine was shortened by moving her upper body down and redrawing much of her midriff and back, giving her a noticeably more pronounced twisted torso. A glint that formerly was on her heart pendant somehow did not get moved accordingly, so now is just sort of floating above her bikini strap. The object in her mouth changed from a hair tie to a black ribbon, and she now has arched eyebrows. She has less hair in the back, and the hair and shadows on her right forearm are different. And for some reason the cloud on the right is more blurry.

Overall I think the previous version is better, but the artist must not agree, since he has deleted that version from Pixiv.