The yellowing is normal as we get closer to the end of the grow season. Roughly, just under 3 weeks to go. I prefer almost 80% of my leaves to yellow by the end of flowering. (The smoke will have a better overall taste) Yeah, I wouldn't expect massive buds, but the sentimental value you have will make smoking her that much more enjoyable. I think she looks fine and dandy. You can expect nicks and bruises when growing outdoors, but it part of the environment we can't completely control.

Just do me a solid and check under the leaves on her. Just to make sure there aren't any bugs.(they tend to hangout there)

Peace