I think they are looking pretty good. Are you checking the ph of your water? If you are using tap water it could have a ph of 9(that's what someone at lowes told me) so I ordered a ph test kit with ph up and down 2 days ago. My leaves did that too where they yellowed, wilted, and fell off. If your ph is off then the plant can't use the nutes your feeding. Maybe a good flush would help also...just throwing out some ideas. Anybody correct me if im off base. Im still new. Im a 2-4 weeks from harvest.