The green spot is just a part that hasn't aged properly, literally, a "green" part of the leaf. If there are ever white spots, it's where there was a drop of water sitting on the leaf while ageing. Neither are a problem, go ahead and smoke.
Not sure on the Robaina, but the RandJ doesn't look right, and the Partagas are obvious fakes, the band is wrong. The gap on the outsides of the gold stripes should be even.
If you want to get better photos of the Vegas, I have a few in my humidor, and can take comparison shots if you like?
They don't look "loose", just a little shoddy around the caps. The leaves are pretty ugly, but to be honest, I have had known genuine cubans with some obvious flaws, and poorly applied bands. The printed on the bands is always good though.
If I get a suspect batch, I usually sacrifice one, to check the contents. Nobody wants to be smoking floor sweepings, or dead bugs! However, fake cubans IF THEY WERE BOUGHT IN CUBA are normally fairly good quality anyway, being just cheaper "local" cigars pimped up with fake bands, and more commercial Vitolas.