High,
The sativa in the back needs a flush. She has some sort of nutrient deficiency. Could be because of nutrient lockout or due pH not in the right range (pH 6.2).
The purple leaves from the 2 plants in the front are genetics. They will look very beautiful further into flower.
And next to that the only thing that is missing is 1 more plant in the left corner to fill up that tent with a massive jungle 😜
Looks beautiful, just make sure you keep a good airflow between the leaves and plants.
Happy Growing! 😋