I really like this. Interesting character.
Mortimer Fox? Nah, sounds too lame, hehe.
Since he is a Fennec Fox "Echo" sounds like a good name.
He looks kind of like a fennec fox, so maybe he could be Finn?
With ears that size his name should sound like a noise or sound. He must hear well.
great small char! one of the best designs I ever saw on PJ! :)