Is this bud look ok and healthy

If those brown leaves are slimy, it's likely bud rot. If they are just crispy, you may be fine. Just a bonus, it looks like you're still going a bit heavy on the nitrogen...

https://www.growweedeasy.com/cannabis-plant-problems/bud-rot

this bud go to bud is rotting , sorry.

I hate to be the barrier of bad news but it looks like your bud is rotting. This is the beginning stages of bud rot my friend.

color is a tough thing to see in photos sometimes. The only odd color i see looks to be a leaf. so, as long as the rough looking leaves aren't easily pulled out and mushy at end of stem, should be okay? Smell will play a big role too, but a bad smell like rotting material. if you cannot be certain, wait and see. Isolate the plant in the meantime, if you have that luxury. pull one of those leaves out to check. If it is stubborn, leave it. That is an excellent sign. But if it easily pulls out, push the sorrounding material apart to look in there too- tweezers or something before you try to pull it out or after. See any unusual discoloration or bad smells, it's probably safer to assume the worst.. chop that cola off.. remove carefully .. hope it hasn't spread. Before you go that far, really be certain. Like i said, a photo isn't the best thing to go by. You'd know if there was an odd discoloration of your buds from your day-to-day dealings with it better than me looking at that picture. I see in recent weeks you maintain a 55% humidity? That also bodes well for inhibiting microbial growth. good exhaust etc.. just be sure before trashing anything, because your environment seems fine for avoiding it. As i look at diary more.. is this a bud along the side of the tent? That could be different if it is resting against it. That context could easily grow something.

Amazingly looking! Gorgeous girls! They will finish perfectly, without any kind of big defficiency, seems to have had excellent care during all the growth periods. Keep on the great care! Happy smokes!