General Critical Damage bonus on skills

Yes critical damage bonus works for all blow types from daggers.

But what about yul/tyr/iss critical skills?

1) AQ/Istina Ring will increase damage from critical damage skills by non-daggers classes?

2) Fire squad lvl 3 critical damage "and Critical Damage increase by 100." works for non-daggers critical skills?

3)self buff like Feral Ogre Cry From tyr warrior works for tyr warrior critical skills?