It is beautiful to recognize the value of our loved ones, dear friend... even more so if it is a birthday... that remembers that important date for each person... it means a special moment of birth that begins life.
How considerate of you to your sister-in-law...I can see the sincere and fraternal affection...I'm sure it's mutual...I loved the detail of expressing your respects to her and I join in with your positive message of life.
Thank you @elizabethrom