Looks good so far man.
You have a nice compact plant growing there.
A couple of questions to your questions then.
Why the clear cup? Do you want to see the roots so you know when to transplant? Don't let the light get to your roots for very long.
Is there 2 compartments to the wardrobe? I ask because of starting the others. If you have 2 then veg and bloom seperate if you choose to.
I'd do more than 1 just incase its a ........................male.
I just went through that, bummer, all that time spent. Anyway.
As for the yellowing leaves it may be nitrogen. A little nutes now would not hurt. I don't know when you should see results exactly, but not more than a couple days.
Okay now the basics, size of room(s), kind of light (400w what?), 24hrs or 18/6, ph, etc.. Pics of those help too.
The more info to start your journal the better, all around.
The male. Dissapointing at best. If it were in a hole outside no big deal, but the 24hrs of light in a grow box vegging for 6 weeks and.......notta.