Yeah, for my 2 cents, I'd let 'em run a while longer.

Just harvested my two White Rhino plants last weekend; trichs just starting to turn amber. I was amazed at how long that took (dunno why -- really my first grow; just thought this would go faster). Almost spent a full 10 weeks in flower here, and I think the extra weeks helped. The buds grew, leaves turned yellow. Yours look like they might go another 3-4 weeks.

Smokable right now though -- I can assure you of that!