When you're facing a pair of foo dogs, the most auspicious placement according to feng shui is with the female on the left and the male on the right. And if you have a pair displaying them together rather than in different rooms is the way to go.
 
What are Foo Dogs?
Guardian lions, also known as komainu, shishi, or foo dogs, are intimidating, mythical, lion-like creatures seen across a breath of art forms, ranging from architecture to tattoos. As they symbolize prosperity, success, and guardianship, they're full of meaning—which has made them popular in Western art too.
 
5L X 3W X 13H