Brie,
I think your girls look very much alike. They have the same expressions and the same eyes and hair color and skin color too, well at least in the photo's.
My kids looked so different at birth, but looked more alike at ages 3/10 4/11 and now are changing again and looking different.
Morgan lost two more pounds this summer but is getting taller- everyone thinks she's so petite- she will be going into 1st grade and her friend is 51 pounds and about 5 inches taller going into kindergarten. Morgan is 42 pounds and 44 inches tall - still in her size 5's and shoes are 10 1/2 or 11's.
Anyhow- I think your girls look alike- maybe they don't act alike- mine are two totally different acting children!