2nd and 6th look like they are males. Although I'd need you to put up pics of calaxies. If they are female they'll have little things that are called, (Bracts) coming underneath the calyx, also it'll have white
hairs coming from the top of the calyx, (stigma). FYI male plants won't have any (Bracts). They'll have loads of little balls of sacs, and its hard to tell. (Like a bunch of bananas hanging down) best thing I can do is send u a DM and you can figure it out. Its real simple pal.