First grow Auto Moby Dick XXL- outdoors

Day 57- Finally I'm back home, now I can take some good pictures and maybe get helped with those babies. I see that some leafs are yellowish, I don't if they are getting that color because they need more nutrients or if they are because they are old. I would like to get helped here please, I don't know what I'm doing wrong (well it's a little hard for me because I'm 15 days out of house for working) but I want to get those babies beauty and well feeded to get the "best" production, I know that I've committed a lot of errors, and the planta have suffered a lot with the rain and the wind ( typical outdoors problems). For my next grow I will put some plastic or something to get the plants out of the rain, but at the moment they will stay like that, without anything, just sun+rain+wind+nutrients. I have read that is wrong let the plants get the rain on the flowering stage, but here, January is the driest month of the year, so I think that that will be good, because I will have like 30 -35 more days before harvesting ( or that's what I think) Well, thank you so much for read and follow my diary I'll be so grateful if any of you can help me with the problem that I think I have. Happy grow for everyone