I'm going to say one of your plants looks super healthy and short and fat like an Indica.
The other plant that has slightly yellow leaves is more sativa leaning and is crying out for some nitrogen. From what I understand when a plant is going through the "flower stretch" its using excess nitrogen to push those flowers up but in your plant it looks like ours taking it from the leaves. Growing different strains at the same time can prove challenging when it comes to feeding as each plant will have its own needs at separate times.
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