To achieve Sameera Reddy's cheek colour, try dusting some NARS Luster blush slightly under the cheekbones. My tip on making this look work better in real and not have strangers politely look away from your face out of confusion? Go slightly lighter on the blush application. The look itself is great but I would have gone a bit less heavy handed on the blush.
image source: hamaraphotos.com