(Update made in the OP. Details on Skara Hunters and finished my two character sheets)

Now, first off, Stonedogg.

I am conflicted with your character sheet but not because of history per say or skill set but mostly with appearance. 

Name started to bother me at first but I thought about it and Erik Huldstone is fine as the Rath'kar integrated with Dwarves.

It's stated in the OP that Rath'Kar are known for colorful hair and eyes yet not having much facial hair yet he has plain brown hair, brown eyes and a full beard. And being 9 feet tall is TALL even for a Rath'Kar but I never specified on how tall Rath'kar could get so it does't matter. 9 feet is quite fine for an exceptionally tall rath'kar. 

I do on the other hand have some problems with the Wyvern It worries me because of the flight. But I did hint at that Wyverns had been trained by some to ride, just that it was exceptionally difficult and considered more trouble than it's worth by most who attempt it.