I haven't played the game that much but I still love the graphics and the characters/monsters. So I drew pic of my fave Mana's though I could't fit Uru ;3; Anyway here are:
On the top: Silwest, Aion, Eital, Fanatos
On the bottom: Flay, Plua, Nymph.

Characters are from Atelier Iris Eternal Mana.
Background from google.
Art by me.