JUST KNOW THIS; some people do not photograph as well as others. I have been told repeatedly by men that I look better in person than in my photos. Even my professional photos.
A lot of people do the opposite, apparently, their pictures are all funky angles that make them look better than they do IRL. That's why you ask for more pics.
Still, that shouldn't be your ONLY criteria. You can be attracted to a personality as well, and rightly you at least partially should be. You cannot have a relationship with the way someone looks.
Yeah some people refuse it.It's a good advice, but I find webcam too awkward for that to work decently.