You need to see a waist, both from the side (a nice tuck) and from the top.
What, and how much, are you feeding?
He eats Purina ONE, about 4 cups a day split into two feedings.
I want to get him on Taste of the Wild, as that's what we used to feed our pitbull before he passed away but money has been tight. Hubby just got a raise though so I'm planning on switching soon.