It looks good in color but will start turning fast.
Most bloom nutes are low in N.
Losing leaves is not normal until late flower.
What soil is that and what have you been feeding and how much.
The whole bloom nutrient thing is mostly bullshit. A good balanced feed all the way through works great.
The make two sets for people to buy more.
I've run dynagro one part 9-3-6 and it works great.
Don't buy into the hype of all the bs nutrient companies sell.
Only certain strains will need high P or K.
Plus you know that thing is burning N fast from stretch. There is none left so its taking from old growth.
Losing leaves in early flower is not normal and due to lack of N in bloom foods.