Sailor of Athena fortune (or any miles sailed commendation) - 1000 miles is too much. When I hit Athena 10 I had only sailed about 300 miles. I think it should only require 500 miles
Legendary merchant of fauna/legendary merchant trader - these should both be halfed so we only need 250 of each and not 500. The skulls and chest pirate legend commendations are fine because we get skulls and chests for basically anything we do. Skull fort or skeleton fleet drops skulls and chests. We sink someone and we steal their skulls and chests. But with merchant animals they have to be delivered on time meaning you have to have a merchant voyage active so you can't really steal animals. You also don't get animals from forts and fleets so why do we need 500 of them for the commendation? It's the same problem with the cargo. I think these commendations were supposed to require the same effort as the chest and skull ones, but I don't think rare considered just how many more ways there are to get skulls and chests, when compared to animals and cargo.
Legend of the deep - only 50 fish for the legendary commendation? I got that in about 2 hours. Shouldn't this be closer to 2500 fish? I mean we need 500 animals for that commendation so why only 50 fish? We can catch a fish every 30 seconds if we go pondie fishing, and if it's a full crew you can problem complete this whole commendation in about 20 minutes. This is weird to me considering how grindy most of the other Athena commendations are
