Chobi, My sister's dog

Today I'm going to try to describe my sister's dog. 
My sister's dog is male and is about three years old. We're not sure of his age exactly because he was an abandoned dog. My sister got him through a foster-parent system.
He is a mongrel and she guesses he is a mixture of a beagle and a Shiba. His body color is light brown but his face, neck and chest are white. His tail rolls up like a Shiba. His ears are not so big and droop like a beagle. He has lovely, round, brown eyes. And he has his own unique character in his face. There is a mountain-shaped boundary line between the light brown part and the white above his eyes. It creates an indescribable funniness. We all love his charming expression.
Overall he is a good boy, but there is one problem which is that he barks at strangers, especially men, furiously. Maybe he had a bad experience with men. This is difficult to overcome, but now he has completely become a member of my sister's family and has spent a really happy life.