Photos on Family Sharing
do anyone know if someone can view my photos by family sharing
[Re-Titled by Moderator]
Not if you don't share them.
If you are asking about using a shared iCloud storage plan, see the following from Share iCloud+ with your family - Apple Support
When you share an iCloud+ subscription, everyone in the family group uses their own account. That way your photos, documents, and other information stay private, even though you're sharing access to the service. You simply share the features and space available in iCloud+ with your family members, so you only have one plan to manage.
If you want to share the photos, there are options that you can use to do that. See: How to use iCloud Shared Photo Library - Apple Support and How to use Shared Albums in Photos on your iPhone, iPad, and Mac - Apple Support