This is a picture that scan from a book cover. A book title is "Let's go Space Battle Ship Yamamoto Yohko" vol.2 "Cristmas Carol in Free Fall". This is a sereis story written by Taku Shoji published by Fujimi Shobo (Fujimi Fantasia Bunko). An Illustration is drawed by Takashi Akashizawa. Girls name are - from left to right - Yohko Yamamoto, Momiji Kagariya, Ayano Elizabeth Hakuhoin and Madoka Midoh. Thank you for anonymous ftp service. k-sakata@ccs.mt.nec.co.jp