She was born on December 31, 2007 making her almost 19 months old. She is 24" in height and weighs in at 58 pounds. She doesn't do the stack on demand at all, so I know these pictures probably are a far cry from what is desired in a proper stack. I'm inquiring about the critique because my mother is so set on the fact that she looks very underweight. I don't believe she does. I can't see her ribs, but can feel them a little. Anyhow, thank you for all opinions and comments.