Here are the steps to Share OneDrive Photos with Others using iCloud Photo Sharing on iPhone:

1. Go to https://onedrive.live.com & sign in to your account.
2. Download "OneDrive" app on your iPhone from the App store & launch it.
3. Open "OneDrive" app on your iPhone.
4. You will see all your photos and videos.
5. Open the photo that you want to share.
6. Tap "..." (3 horizontal dots) located at the bottom-right corner of the screen.
7. Select "Open in Another App" option.
8. Tap "iCloud Photo Sharing" option.
9. An "iCloud" window opens up.
10. Enter the name of "Shared Album" and tap "Next" button.
11. Add contacts to share your photo.
12. Tap "Create" button.
13. Enter the description of your photo and tap "Post" button.
14. This way you can share OneDrive photos with others using iCloud Photo Sharing on iPhone.

Quick Tip to Backup your Digital Photos
If you have treasured photographs, or you take photos of everything you like, you won't want to lose them. So, what is the best way to backup photos on an ongoing basis? In the back of your mind, you know you need to backup all of your photos. But where do you start? Here's how to backup your digital life: PicBackMan is the easiest and simplest way to keep your videos safely backed up in one or more online accounts. Simply download PicBackMan (it's free!), register your account, connect to your online store and tell PicBackMan where your videos are - PicBackMan does the rest, automatically. It bulk uploads all videos and keeps looking for new ones and uploads those too. You don't have to ever touch it.

Apple's Photo Stream service has an "iCloud Photo Sharing" which allows you to create shared Photo Streams and share them with family and friends. You can share your Photo Stream with other iPhone, iPad, and Mac owners. They can view, comment on and add their own photos and videos to your shared Photo Stream. Sharing OneDrive photos with others using iCloud Photo Sharing on iPhone is easy. To do so, you need an access to OneDrive account on iPhone and Apple ID to sign in to your iCloud account.