Sorry I wasn't clear. Yes, the focus is not good. You can't use this photo.
But see how her sleeve fabric texture is perfectly focused? That's what I mean by "you just missed it". Your focal plane was very very close.
Oh gee, it's really really close. You only missed it by a fraction. If you'd chosen an aperture a bit narrower than f/2, you would have been fine.
f/2 was never going to work for a subject walking towards you.
Then you'll just send a jpeg file as usual, to the magazine. And yes, make sure it's 300ppi as they asked.
For web, maybe you just need to do what they say. Don't resize them at all, just crop two versions for them.
You'll have to ask them. Every website is different. They'll need to tell you exactly what pixel dimensions their website requires.
Resolution is completely irrelevant for web images. It can be 300, or 72, or 3000000000, or 7. Only the pixel dimensions matter.
https://www.damiensymonds.net/2010/10/how-ive-been-sharpening-for-web-lately.html
PDF? Are you sure? Can you show me exactly what their requirements say?
Yes, you gave me exactly the right screenshot.
Also, your Clone Tool is set to "Current Layer" in the Options Bar. That's bad. It must always be set to "Current & Below".