Unused look : This look is not available in the game.
This is the original blue axebeak colour, which was added in the Warlords of Draenor beta test but was removed and replaced by the current blue axebeak look before release. Hopefully it could be restored to the database and used somewhere in the game, though it's also possible it was removed because of trademark concerns with a certain breakfast cereal mascot.
*Level scaling: In Shadowlands most NPCs will scale with the Hunter's level, within the constraints of their level range. Hunters can tame regular NPCs up to 2 levels higher than them, but can only tame elite NPCs of the hunter's level or below.