Harvest? Autoflower week 13 since germination

I can't tell for certain without looking through a magnifier but I would let them go longer. The Royal Gorilla's look closer but I would want to look at the trichomes to be sure. A pocket microscope is about Canadian so probably only US and is a very valuable tool. Many websites and videos can show you what your looking for.

Looks about ready, but I'd probably give it up to another week or so (speculatively, from the look of stigmas).

While they certainly look close, you gotta get in and get a good look at the trichomes to know how"ripe" it is. Get some type of magnifying device you're comfortable with and see what stage your trichs are in.

Hello fellow grower, Without looking at trichomes i wouldn't be able to tell you. Do you have a jewellers loupe to check their colour. Standard is around 80/20% cloudy/amber. Your plants are looking awesome though, well done!! Good luck and happy growing