I don't think I'd signed off on it, but I will do so now. CR is probably ok at 6 compared to the werebear. LA might need a boost, though. Similar lycanthropes are a +3.
Mechanics all done? Ready for tactics, description, and background?
Tactics have to mention sneaking up on people and choking them!
Yesth, letth finish off the tacticth:
Combat
Greater seawolfth ith real friendly and giv great hugth. If you show yur friendly by throwin yur weapons down, then run up to the seawolf fur a cuddle, the big ocean-puppy will be yur bethtetht friend forever.
I'd leave out the "detailed in Stormwrack" bit, but otherwise, it looks good.
Want to put in a credit line and call it a day?

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.