Personally, I find Tiz for you is a-okay! No need to worry! Swordmaster, to me, is pretty underpowered, so I'd change Edea to a Spell Fencer as I find she's amazing at that job. Anges I would change to just a Black or White Mage, making the other her secondary job. You're gonna need them to use level 5-6 spells, after all, and Red Mages can't use them. Ringabel as a ninja? PERFECT!