Are these males?

Hey guys. I'm a first timer and have some difficulty telling the gender of these plants... I have bad eye sight so i cant really tell if these are males or not. I'd be great if someon would have a look at the pics and tell me what they think. The close ups are of the 3 plants on the front row(2 pics of each), the 2 in the back are clones so they're cool. The pics got randomized somehow but you can tell by the numbers in the picnames which belong to which(i hope) I took 2 pictures of each, one from the top and one from the stem starting from the left plant. :shock: (they've been flowering since 4/20 btw) Cheers
 

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