Good idear, bad execution on the new world pack.
That isnt a new world pack, thats a south america pack with one north american attatched to it. The easiest fix would be to change the spectacle bear to the american black, making it a "fair" 2 northamerican, 3 south american and 2 both.
Id also dump the otter or bear for the white tailed deer, as it inhabits both continents, would be a clone production wise and add an ungulate to a so far ungulate free pack.
Another good option would be the collared peccary, both coming with the additional bonus of representing the drier parts of north america.
Old world i got no complains, nice mix of areas and biomes and all of them are top picks to make it to the game. Neat!