이선빈 and 지수 look like siblings

I've been watching Sketch (스케치) and noticed that Lee Sun Bin (이선빈) looks similar to Ji Soo (지수).  I think it is mostly in the nose and eyes and expressions she makes. I tried to find some pictures to show how similar they are but I fear the still photos aren't the best at illustrating my point. If you watch them in shows you are bound to see the similarities in their faces.