2015/2/10About visiting my cousin!If there are any mistakes ,please correct it!Thank you very much!

Today,my family visited my cousin,because his babies were born last week.They are twin daughters and they are so lovely that I like them very much. At the first glance at them, I asked my cousin which one was older.He said: "You guess." Then I carefully observed them, and I felt that the head of one baby was bigger than the other baby's head. So I said: "The one who has a bigger head is the older sister." Then he smiled.His smile meant that I was right.
My aunt prepared a great lunch.After lunch, my family went home.
Anyway, it was a nice day!

2015/2/10 About visiting my cousin! If there is any error, please correct it! Thank you very much!

Today my family has visited my cousin because his babies were born last week. They are twin daughters and they are so lovely that. I really like them. The first time I looked at them, I asked my cousin which one was the older. He said "you guess". Then I carefully observed them, and I noticed the head of one baby was larger than the other. So I said "the one with a larger head is the big sister". Then he smiled, confirming / meaning that I was right.
My aunt prepared a great lunch. After lunch, my family went back home.
Anyway,It has been a nice day!

Hi there!
Congratulations on your new baby cousins!
I'm not sure if all my corrections are accurate, but I've tried my best.
Great job! Keep it up!