Very nice set... I wouldn't send that back at all... that is character. This IS bone we are talking about. If it's not structurally cracked, it's good. I like that type of character in a natural material scale. I wouldn't be a bit disappointed if mine comes in with something like that. Your calico is almost exactly what I would look for in that color. Sort of dark, with the look of some appaloosa in it.... very nice.