New to growing haven't asked anyone

Hey guys so I haven’t had any opinions or help on my first grow of blue dream autos these pics are my plants now and I’m just wondering how they look to a professional or multi-time growers.! The first 2 photos are 2 plants i havent had any problems with except i wonder why one grew to about 4ft and the second one grew to 6ft then the last 2 photos are plants ive had a problem the whole grow with even thought i started all 4 plants at the same exact time . Would love some feedback guys thanks 17078349136695391594174580349040|225x500

Looks freaking sick for a first timer …
Nice work.
Advice…
pH first and always.
Food to below 450 ppm shouldn’t choke her
Light with a tool to measure it.

Good luck