She’s still got 3± weeks left I think. There will.still be fresh stigmas when it’s done, but it will be the inverse ratio of what you have now, with more reds and less whites. Right now you’re 75/25 red/ white. I’d go 3:2 or 4:1 ratio, red to white, but each plant is unique. The first day it doesn’t look as good as the day before, pull it. She’s going to put out more resin soon. Next couple weeks.
Light cycle or in your case a light leak, won’t effect pollination with longflowers to my knowledge. The only issue I ever had was when heavily pollinating a lone remaining branch very late in flower after harvest and then switching to a long light cycle. In that case the plant can and likely will abort some or even all seeds and instead favor leaf formation with some or all its energy.
Congratulations on your first Oaxaca harvest😁.
Yes you can leave the other half. It’ll kind of hang out looking just about the same for a couple more weeks, then slowly fade away for a few weeks more. I’ve had them put out fresh stigmas well after week 20, but the buzz loses its special quality after a while. Once that last clump of calyxes at the tip swell up, it’s the end. Past that and you lose quicker than you gain