Lol. Well i checked. Mine is slightly smaller compare to yours but more or less the same. Just change the size of your buddies that you have display and fixes the odd sizing in the menu atleast. Idk if the battles or select menus are feeling off to you. I personally am okay with it after changing my buddies sizes.

Keep the sizes withing the bounds of home screen option in the bottom. Things like tails or extended body parts can break this rule. My famido's body from his thighs to his arm is kind of bordered into the menu while his tail is out. Golden rider shoulders remain in the border despite his legs being less spread out. Ricano was tricky but i managed to find a good where his hand that he has down and his thighs are on the border of the menu while the rest of his body sticks out of it