Time for updated pictures of my 2 ladies. No matter how hard I try I just can't seem to kill these things

Northern lights #5 from the vancouver seed bank. Started 12/12 on Aug 1. Feeding hydro fertilizers as my initial plan (before I realized how little I knew) was to go hydro.
Does anyone know where to get a cheap microscope? I tried "The Source" aka Radio Shack and they are mostly sold out. I really don't want to drop the ball and harvest at the wrong time ... HELP!!!
Cheers and beers,
R