Looks more like her favourite feet, than favourite shoes. Perhaps if you wiggled them and got her to chew them or interact with the shoes some way this would have helped.
Awwwwww. . . .that is sweet. I think a litle tighter crop may have enhanced this even more, but maybe that's just me. I tend to prefer close-up tight crops. But I do love the picture!!!
I think I would find this more effective if the shoes were not being worn and the distraction of the rug were taken away and replaced with a solid color.