One simple background. One model. That is what Sean Archer uses, and I believe he makes the most out of it. They all stand out in their own way. No distractions, the beauty of the model is the only thing that captures your eyesight in the frame.
If you wish to see more of his work, of which there is plenty, check out:

Alena
Christina
Cry me a River
Dasha and Bob
Dasha
Elena
Evening Light
Julia
Nadya
Natasha
Tanya
Veronika
Xenia
Yana
Zhenya
Zulfiya