Thanks for the tips Tony. I totally agree on the weed - I tried to remove it but I have some learning to do on the PS front. In the end I bailed because I could clearly see the edits. Regarding the knees - I'm still unsure how I feel about them as well. The other shots I had in this pose showed her cowgirl boots, which were even more of a distraction than the knees. I don't know - part of me likes the knees and part of me doesn't.
I'm really glad you mentioned the reflector. I consciously chose not to buy one for my first portrait shoot because I wanted to keep things simple and clearly figure out what I was missing. I knew I needed a reflector but wanted to clarify that need before buying. The need for more lighting on the face is something I didn't identify until you commented. That's really, really helpful to me at this stage. Reflector need +1. Thanks again.