Originally Posted by Peter65
Those are gorgeous pics - Yes it can be hard taking pics of animals - sometimes it's best to get further away and use a zoom - hope you don't mind - a forgotten pic of my boy Max at 9 weeks, and a lizard in Sidney Zoo both taken at a distance with zoom.
Peter is righ, it's not just that the head is closer to the lens (although that's part of it) it's because you are close to the dog, the wider angle distorts proportion. If you stand further away and zoom your images will look much more in proportion.
Your photos are a little bit dark too, but you did the right thing having him in the shaded area though as the bright sunshine would've caused ugly shadows in the photo, so it was more even light in the shade. Sometimes things like getting him to sit in your doorway with you outside works well, or there's a photographers saying "first tree in the woods" where you get your subject *just* in the shade and that means they usually get a nice quality even light on them.
Hope that helps, he's a gorgeous boy.