Guessing that is the Widow? My purps finished in 8 weeks... who knows if we have the same genetics though it's a pretty loosely used strain name.
Either case, looks pretty damn close to me. As for the amber trichomes, if you are looking for a more couch lock high let them go amber, otherwise take them when all are cloudy and a few amber for a more up high. I always harvest at around 10% amber.