Also finished Act II.
The second release improved a lot. I'm happy that the menu is clearly structured now. It would be nice if the menu point "Techniques" would contain the techniques used in battle mode.
Spoiler(highlight to read):
I'm sad that Mia had to die. She just didn't deserve it. I am curious how the story will go on. As things are now, Auria is the leader of the Virad though she has still control over her own body - I bet the Virad captains will be furious when they discouver it. ^^
Btw, when you had to choose to kill either Seri or Vanquish which one was your choice and why? I let Seri to be 'killed' because I thought he would let both go when I show him that I treat them equally even if Vanquish is a stranger. It turned out to be a good choice(even if Seri was injured) because I wouldn't have survived the battle without another character who has the ability to heal.
(spoiler ends)

Go to Biorek after you gained a certain new character.
As for the Virad artifact:Bring him a Virad mask. The monster in the warehouse where Seri was hold drop them. As for the second artifact he asked for, I didn't find anything yet.