Jealousy- action

Hi there, My daughter-in-law makes picture books of her two daughters ages 3 moths & 3 years. This years Christmas gift was the picture book. Other than one huge group family picture, I’m not in it. I understand the focus is on the children, however she has included five pictures of her mom and two of dad. I feel left out and unimportant. I already have had some insecurities surrounding her parents that have the big house, the special designated children’s room… I wonder if I ask if there are any bad feelings? I don’t want to seem or be petty. But I won’t be around forever, and I want my grandchildren to know that I did spend time with them and loved them. How does one bring up a sensitive subject? Or do I just work on my acceptance of the circumstance?