Export an album to select family and friends
Go to Settings > iCloud > Photos. Scroll down to iCloud Photo Sharing and turn it on, then open Photos and select the pictures that you want to share. Tap the Share icon and choose iCloud Photo Sharing. The app will prepare the images. In the dialog that appears, type in a comment, then tap Shared Album followed by New Shared Album and give it a name. Tap Next. Enter the email addresses of the people you want to view your photos. Tap Next, then Post. The album appears in Photos’ Shared view on your and your friends’ devices.