I'd like to see a "bit" more waistline myself. I have 2 11 wk olds here, and they DO have adequate padding but they also have more of a waistline than your photos above. The rolls over the neck may or may not be indicative of weight as well (shoulder set may have more to do w/ that) but again, I don't like to see that. If you can feel ~1/4" of fat over the ribs, that should be fine.