Overall i think their units are well balanced but i do have 2 issues with their army.
Deck Droppers (handguns) - feel very under-priced and they break some match-ups
Summons - WOW they can summon so many units and those are not even bad units, on top you can pick a lord that can summon even more units.
I'm really not ok with this, its ok for VC to summon so many units because they an all melee faction, but VP have so much range that can shoot into combat with the summons or intercept good play from opponent by summoning to cover their missile units or cannons, its already hard enough that their units don't rout but now you can block paths with summons.
I'm not sure which of their units are UP and if there are any they can be buffed but the summon spam needs looking into.
Not really sure how to balance this but they shouldn't be able to summon a whole army in such a roster.