Really hard to tell, not quit close enough, plus light in pics makes it difficult to guesstimate trichome color -- 10-30% amber is probably when most say the window starts.
You want the stalks and heads you see, but focus on the ones projecting off of bracts and pistils (pistil leads to stigma, which is the white hair). Ignore the leaves coating.
https://blog.seedsman.com/use-trichomes-determine-potency-harvest-time-cannabis/
That's just one of many sourcs you should read over.. i didn't double check if it is all kosher.. difficult to know in an unregulated vastly untested context.