To age gracefully: "Your grandmother looks great for 82. The lines on her face show character and indicate that she has experienced an interesting life."
To not age gracefully: "Your grandmother looks quite scary for 82. The stretched out skin on her face and inability to make facial expressions indicates that she is insecure about her age so she is desperately trying to look younger, but it still doesn't look good. She's not fooling anybody so she should really just embrace her natural beauty."