When a girl posts a picture of herself on Facebook vs. When someone else posts a picture

Not that bad, either way ;)

For a moment I thought her shirt in the second pic said "bitches love divorce"

Who is that?

I had this happen to me long ago when I was doing online dating. Always beware of only face shots, especially those from above. They could be hiding a double chin and 150 lbs of extra "water weight". Now I am not a complete dick, I did explain to her that 5'3" 250 is not average and we could be friends, but only if she changed her profile to the truth. She did, we remained friends for quite some time, but never dated. I'm an athletic guy, I run 6+ miles a day and lift weights, so I ended up marrying someone with similar interest fitness.

I like the seconed pic