Sour girl auto

this is definitely overfeeding and not a deficiency... the dark green leaves indicate too much nitrogen.. you said you only fed her once in the entire grow, which could still be a bit too much, in case of pre-fertilized soil.. also during the mid-to-late flowering phase the plant doesn't need much nitrogen anymore (compared to the veg-phase, or the beginning of the stretch phase in early bloom) Given you grow on soil, i suggest reading this about fertilization: https://www.mandalaseeds.com/Guides/Fertilizing-Smart-Guide even when it might not really apply directly, when you use pre-fertilized soil, however the pre-fertilization might still be too strong for your specific environment.

don't judge them yet. the only thing you can do is provid emore light. there is such a thing as too much light. ~100 umol/s per 1 sq. ft. is toward upper end without pumping in CO2. don't go by watts as that's silly. if the light doesn't provide this spec, good chance it's a crappy light. But, like i said at the top... give it some time. those will ripen a lot more than you think right now. get worried if that whispy stuff doesn't populate a good stretch of stem at top... after that it takes forever and a day to ripen when you look at it everyday.