Looks okay... the pistils are coiled up it seems... most or all hve color. Need a 30x magnification to see trichomes. consistently seeing 10% amber in any locale is generally the start of a harvest window, but some specimen don't progress like this..
give a nug a feel when you know it's a day-to-day as to being ready.. is it dense? (don't do this often, just as a final determination to limit compressing more than 1 cola maybe 2 if first check isn't up to snuff.)
Anyway use all three metrics to choose a harvest point. It'll average out to more consistency over time as not all plants act the same. you can more easily choose a early to late harvest option relative to personal preference... more ripe is sleepy time weed.
while the breeder estimates can be useful, there are times it's utter bullshit too... at best it's a good guesstimate of finish time and for this plant it looks damn close, eh? but always let plant determine and you'll get a more consistent buzz from yoru buds... hopefully tailored to your wishes and not the peanut gallery's.