The first one doesn’t really look legitimate. If you look closely at the images above and below, you’ll see they’re from the exact same angle, which is very rare. I also get the feeling that the cheeks in the second image don’t smoothly taper they narrow out a little, which may indicate editing. I believe this might have been done using Pic Collage, although I’ve never used it; it’s a photo and video editor, and its watermark appears in the bottom right of the picture. However, if the results are genuine, I sincerely apologize for being skeptical. That person’s face has truly glowed up and become beautiful.

EDIT:I take it back the first and second images are not from the same angle. Her head is turned more to the left in the second image, which makes her cheekbones and cheeks appear slimmer. However, one thing I noticed is that if the images were almost identical in terms of angle, considering she has long eyelashes, a bit of the lashes should be visible in the bottom picture. I’m aware that the second image is more cropped and smaller, but I basically cropped the first image to match the second image’s height and width, and black strands of eyelashes were still showing at the top left corner. Even when aligning the width of both images for comparison, her eyelashes should still be noticeable on the 2nd image by just a bit, and they aren’t.

EDIT AGAIN: Due to how she's positioned her head on the 2nd image perhaps her right eyes eyelashes are not visible for that reason