Harvest & Curing Auto GDP ready for Harvest?

[Harmonizer]

Hello everybody ... noob here with first grow. I built a custom 2'x3'x5' cabinet and use 250W (wall plug) LEDs. Granddaddy Purple seeds from MSNL using top fed DWC. The girls are now 11 weeks old. About 1 week ago, I noticed a slight yellowing of the leaves, though that may have been due to low pH (5.3 at the time). Take a look at the photos and let me know what you think.

Thanks for any help.

 

[babethPOWERS]

No pinks for pics please

Yellowing is a sign of being ready for harvest sometimes

 

[AutoWonders]

About 1 week ago, I noticed a slight yellowing of the leaves

No need to worry. I've had lots of yellow leaves by harvest time. It is not unusual. Did you buy a usb cam, pocket scope or jewelers loupe to see thrichomes up close?
Yeah, the light off would make for better pics.

 

[Harmonizer]

Here are a few photos with the lights off, and a couple USB microscope picture of a clipping of one of the buds.

What do you think?

Thanks