Ferrets have longer bodies and shorter tails that do not move like a cat's. A ferret walks in a distinct manner, like a hopping movement. The artist who did the ferrets for 2D and 3D got it right the first time. If the artist for KR does not have the time to actually look at a real ferret, at the very least they can study the one in 2D and 3D. Also, ferrets come in a variety of colors, and while it is true that brown is a common color for ferrets, it would still be nice if the cream-white ferret in 2D and 3D is not painted a different color in KR.