Halite said:

So you think that this image should have a "pussy" tag then?

I don't think it should, in my opinion, because "pussy" refers to either the external part, which isn't visible, or both the vulva and vagina (or just its opening) at once. "Vagina" aliases to "pussy", because it is very often used colloquially to refer to the vulva, but this usage is incorrect, and since tagging is srs bsns, it had to be replaced (at least it makes e621 look smarter). "Vulva" sounds too medical and few users know what it means, so pussy is a good alternative.

Another tag that can't be used here is "visible vagina", because it aliases to "spread pussy" or something like that.

I think we've run out of options, so the vagina in this pic might have to go untagged.

Still, a good deal of the female sex organs are there, along with a penis, so I'm sure the character qualifies as a herm.

And one last thing: I'm quite interested in the reasoning for why only the external genitals should be the determining factor in tagging hermaphroditism, and I'd be glad if you shared it.