IT'S A GIRL! (Now aren't you just the proud papa?)
Though I would like a zoom in on a flower or two from the 1st close up pic ... like the one in the middle just above the half way point .... I am reasonably confident in my verdict. What you're looking for is either the presence of stamen/anthers (male) or a stigma (female). I posted a pic of male flowers a couple years ago on a Nep I had at that time. You'll see that the stamen are very obvious: