Leave shine or not ?

Hi
Just wondered if having a shiny dark green leaf is essential for best results wen flipping to flower
Iv noticed that the last couple of strains I used were more of a pastal dull colour . Iam sure they are getting enough N so not sure if it’s ok and won’t effect overall health and yield . They look healthy enough overall . Picture is week in to flower
Statin is zushi ! Some grows I done have had rich dark fan leaves the last two have not ?
in 60

I like to get them green before I flip. I find it real hard to green them up after they're in flower. If you're not getting deficiencies and they aren't dropping the lowers it's probably good though. How do they finish out for you.

Dark green and shiny is nitrogen toxicity. If it looks shiny kinda like a layer of wax on it you have overdone the nitrogen.

The plants in the pics you posted are not in nitrogen toxicity which is how you want it.