Do you think I am being stupid or silly getting all upset because of the lack of pictures I had?

I am so sorry to hear about your grandma ping away, it is a horrible thing for anyone to go through, and i offer my condolences. you are not being silly for feeling this way at all, but i dont think you should beat yourself up about not taking enough pictures of her. The fact that you had a really strong bond with her, shows that she loved you unconditionally, and i dont think she would ever criticise you for not taking enough pictures. Think of the many memories that you have with her, they are the most important things that you will never forget, they are the things that will never ever take a place of a picture. I think you need to stop worrying and just concentrate on the wonderful times you shared together, you can tell stories about your grandma for years and years to come, and she will never be forgotten.