Is this really the first art we have of both Choukai and Fujinami?
Considering how little art we have of Fujinami at all, it shouldn't be all that surprising. There are only two other images where Fujinami appears with any other character, one of which was an update adding her in with a class lineup, and another was her with the sister ship she is obviously closest to in her voiced lines. (And that one was the Fujinami image uploaded immediately preceding this one.)
I guess the whole Yuugumo class isn't that populated, right?
Kiyoshimo breaks 1k. Makigumo is surprisingly more popular than Hayshimo and Yuugumo herself is up there at a decent number, but most of the rest are down near Wakaba numbers.
When Takanami came out, I tried to go out deliberately scouring Pixiv to populate her image library, and even took one of my few deletions trying.