User blog comment:Ainlina/Userboxes/@comment-11148831-20150213123426

→ For the units, you can just use their latest album covers. (Eien Friends, Aki no Anata no Sora Tooku, Fuyu ga Kureta Yokan). I wasn't able to find rendered logos for them aside from Printemps. Unless you want to make renders yourself. Lol. :v

→ Yes. Image links for JP and EN versions:
 * For JP version: link.
 * For EN version: link

→ Aaand, my take on the third one is still no. :P