Using both the "veg" and "bloom" lights together right from day one, has in my experience, worked very well.
You could also tie your taller plant down, so it matches the height of the other two, without causing any issues for the plant.
Also, next time, please take pictures in "normal" light, it is so much easier to see the plants rather than the pictures taken under grow/blurple lights.
Hope this helps,............
Organoman.