Guess the animal

I am very small. I've got small ears. I've got short legs. I am grey.

I am not very big. I've got a long tail. I've got big ears. I've got a small nose. I am orange.

I am tall. I've got a small head. I've got a long neck. I am yellow and brown.

I am big. I've got a long nose. I've got big ears. I am grey.

I am big. I've got four legs. I've got a short tail. I've got small eyes. I am brown.

I am not very big. I've got two arms and two legs. I've got a long tail. I am brown.