I would love one of Rikuo if you have the time since you seem like you already have you're hand full. :) He would be in my albums or you can base him off of my avatar.
Male Bettas: Rikuo~sdt/Natsu~hm/Albus~ct/Nyuroku~vt/
Female Bettas: Caesar~ct
Marimos: Shu, Haru, Hijikata and Heiske