It looks like yellowing off to me. The buds and rest of the youthful leaves are green and look great. At week ten of flower itβs normal on some plants to do that by yellowing and dying off. Itβs where the plant isnβt taking the nitrogen it use to intake. Itβs telling the plant itβs time to swell out pistils for pollen and finish up. By the amount of them yellow and reddish tones I see, you got about two or three weeks to go till harvest, good luck