I would explain what I wanted from a photo and see if the t would sit in her chair in her office and let me take a picture of her there with my phone. I think if you approach it from wanting a concrete image of her in the office where you are comfortable, it would be not rejecting or ungrateful for the photo she sent.

I rejected a few from their scary photos on the web. Scary photos of them are not good. The one I see has photos on the web and I do look at them sometimes because I cannot remember what she looks like from week to week.