looking healthy. but look into the watering issue, they still look droopy.
why don't you top the plants down to the same height? it will help them become wider and shorter and will even out the canopy thus giving you the option to use you lights better.
if you want to, when the top cut is big enough you can root it and make a clone.
another way is to get a string and slowly bend the plant down, to the point it can take it. a day later bend more and so on until your happy with the result.
it will get the light in to the lower branches, thicken the canopy to less light is wasted and evening the canopy.
another way is putting a screen and go SCROG.
however, I always find indoor grow with very un-even canopies a waste of light. my aim is to always get the canopy to the same height, up until harvest.