that is looking better - now i see what you did. and maybe you need to straighten out the one vert on the left - or add some more random to the other "perfect" hamburger. in your case - if you want to keep the hard "nose" (the line in the middle) harder i would suggest you change the smooth contigunity value a bit down - i would say 0.7 or 0.8 - this way the the harder edges stay hard but get rounded. and to add more roundness without adding detail - i would tweak the subdivision level of smooth to 2.
and i like the teeth - even if they are a quick (duplicate?) hack