nothing wrong with your starting party (and in fact, you will likely be "stuck" with them for a bit until you start being able to hire new people). Main char soldier type, you have a tank in the warrior, you have a BM and a WM, a thief (not terrible attacker but mostly useless otherwise early on, at least he's a moogle so you can get some good jobs off him soon enough) and an archer. "balanced" party totally depends on your playing style, but for a standard 6-man group I tend to prefer 2 heavy hitters, BM, WM, another ranged char like an archer, and then I usually flip out the 6th slot depending on the mission (ie: is a beastmaster going to be helpful, do i want another WM on the field, another BM/Archer for more ranged attacks and what type, etc)
I posted this on the (U) thread but will reiterate it here... I already found my first bug/"feature" in the game when the Law was that you could not target anyone 2 or more squares away from the attacker. My thief attacked a mob and landed a crit, pushing the mob back 1 square: despite the fact that I attacked him from only 1 square away, I "failed" the Clan Trial for breaking the law since apparently the game does its check of where the attacker/target(s) are AFTER the attack happens. Sigh. Like it's my fault I pushed him back... the % to crit is really freaking low
oh well.
On the whole definitely excited A2 is finally out! Only got about 2 hours in it so far but many more where that came from