I wonder if you can guess what my main comment about the commanders is...
They need a decent recruitable-anywhere mage!
Now, I know this is a combat-oriented nation, and blood magic is their main magical strength. But still, this is early age, and most nations have powerful recruitable-anywhere mages. The Misborn are very expensive for a very low probability of being useful. I would say they are a little less good than vaetti hags (I would rather have S1 than F1), and twice the price. And the vaetti are LA.
How about making them 100% (FEDB _+2_), with an additional 40 or 50% (FEDB +1). So because the change of the second pick being complimentary is small, they are basically normally just a level two wizard in one of those paths. Level two isn't bad, but they'd still be magically very weak. It's really hard to build a strategy around mages which are so random - what do you research?
I'm not sure if this is the best solution really, but I think definitely they need a really considerable buff. Obviously they should remain a relatively magic-weak nation, because they are exceptionally strong in combat, and because it fits their theme. But many other EA nations are also very strong in combat and have excellent magic - look at Niefelheim, for instance. And at the moment they are off-the-scale weak.
I said I would comment on the commanders - but apart from the Misborn I think everything is just how it should be. There's an interesting range of nice commanders, they all have a place and all their graphics are great. An excellent line-up, I'd say.