i think this is actually kancolle not original, from the left ayanami, isonami, shikinami, shirayuki, hatsuyuki, fubuki, miyuki
yeap. pixiv title "しばふさん型駆逐艦娘" . which, according to wikipedia, "しばふさん(shibafu)" apparently are one of the artist that responsible for drawing the kancolle girls. so in short, the title simply implies "the shibafu's style destroyer girls".