How do I access photos in iCloud photo library?

Turn on iCloud Photo Library. On your iPhone, iPad, or iPod touch with iOS 8.3 or later, go to Settings > iCloud > Photos, then turn on iCloud Photo Library. On your Mac with OS X 10.10.3 or later, go to System Preferences > iCloud. Click Options next to Photos, then select iCloud Photo Library.Sep 13, 2016 read more

iCloud Photo Library automatically keeps every photo and video you take in iCloud, so you can access your library from any device, anytime you want. Any changes you make to your collection on one device, change on your other devices too. Your photos and videos stay organized into Moments, Collections, and Years. read more

When activated on a given iCloud account linked to a specific Apple ID, iCloud Photo Library becomes the central repository of photos and videos taken with any Apple mobile device running at least iOS 8.3 or managed via the Photos app on a Mac running at least os X 10.10.3. read more