The true dog breeder is usually an avid collector of anything depicting their chosen breed. They will go for realistic/ authentic colouration and shape of their breed in choosing collectables.
I speak as a breeder of over 30 years experience of Bull Terriers.
White Bullies should never have colour beyond the head and neck. The head should always be egg shaped. Eyes should be small and triangular.The body should be muscular but in an approx. square shape (front paws to shoulder to rump to hind paws). Older (1900's-1940's) Bullies had pointier heads and any statues depicting such will be more valuable in any condition.