Well done on the R&R!
Along with Lizmonster's comment, it sounds to me like the characters need to show more depth and back history. Things to consider mentioning or adding:
-Past events both happy and sad
-Hobbies and interests
-Quirks of speech
-Fears and phobias
-Favourite food and drink
-Aches and pains
-Scars and wounds and the stories that go with them