first 2 pics male. but the very last pic is female. my advice is. throw second plant away. and first plant is 50 / 50 toss that too . but the one flowering. keep it flowering.
That is the nanner. As it matures it will swell, and in my experience, form ridges, and then it will eventually split open and drop pollen. they will eventually look like this, which was pretty much on the verge of pollinating. (although not necessarily in colour, and not in this quantity, this being a male)
This is a seed that came from a plant that kinda had the same thing going on with it, so i planted it out in the woods, it went back into veg for a couple months, and finished with like 12 ounces of bud, and I found about 5 seeds. This is one of them seeds I grew out to see if she would have herm traits so I guess so!