30 Staffordshire Bull Terriers

I love to draw dogs, especially shaggy ones with long snouts so one type of dog which can be tricky to characterise is the Staffy. Relatively small, stocky, and muscular in build with short fur, short muzzle and an incredibly wide mouth. It can sometimes end up resembling a mutant puppy when drawn. Here's 30 staffies each sketched for 30 seconds to help me understand the shape of this dog a little better.