Looks like 2 female but difficult to tell from those pictures. Male have pointy dorsal fin and female has rounded ones. If they look the same on both then you probably have 2 female. It should be quite obvious.
Adrian
PS Looking at the photos again at home on a desktop the first one MAY be male.
I think the first one is a male too. He absolutely has a longer dorsal fin but it is quite round. The, I guess anal fin?, is different on each of them as well. I'm sure once they get bigger it will be easier to tell.