Big Baby Blues

I had a ball photographing these three sisters at Okeeheelee Park.  They all have big blue eyes, with the exception of the middle sister (her's are green).  What's funny is that I was in their grandparents home last week showing them the photos & spotted a photo of her when she was younger (about 4 or 5ish) and her eyes were blue...I did not know that eye color could just change like that.  I was amazed :)