This is probably something that has been mentioned before but can not find it in forums so gonna say it any way. Pet sizes are all messed up.
Next to Character Panos for a cat looks well sized, maybe a bit big, still like it. The wolf looks a small to medium sized dog. Leorid compared to a lion is pretty small. The sizes to me are off but looking at them they are all about the same size so maybe there is a formula for converting Mounts to pets, so not much can be done there i suppose (would still like it improved), but the "humanoid" pets i think is something else.
I actually prefer the size of the Rabbini pets then the human sized Rabbini, but come on, Ankelion is a pipsqueak compared to Poseana. No Size formula there.
WeMade and Nexon (no idea who calls the shots, creator or publisher, so put them both in it). "Humanoid" Pets should be about the same size/height as the player (give or take a bit.
Age of Conan, World of Warcraft, Elder Scrolls (no idea about online version), there is probably many more, all Humanoid pets are about the size of the player, again give or take.
Since These pets are coming out of prize boxes or whatever else and are not mounts to begin with, think this something WeMade and Nexon can fix. Ankelion is ridiculously small.
More then likely wasting my time writing this but this is something i would like to see fixed up.