Well, I'm asking myself whether the pictures are of your sister, or whether you've got pictures of places you visited and your sister happened to be in the picture. In general, once you've picked your "subject", you don't want the background/foreground to be competing for our attention. It's fine if it is blurred, or minimized. It's not so good when it's as clear as the subject, and is brighter or more detailed than the subject. On the other hand, if you intended these as a record of your sister being at various places, then they're fine.