Luna and Aptitude on Flora would be great! If you need any help with her skills, I've put up a Flora with Vantage, Replicate, Shurikenfaire, Swordfaire and Nobility.
Since you have Aptitude on every unit, do you mind putting up a few of the following too? I'm trying to get it on them all;
Elise, Effie, Setsuna (and any other useful skills you might have on her), Odin, Laslow, Kaden, Orochi, and Dwyer.
Address is: 06162-49644-88649-77615