Q: How do I see the photos in my iCloud on my iPhone 6S?  I do not see an icon in the Photo app.  I can access the iCloud photos on my PC.

The usual way is to turn on (on the phone) Settings > iCloud > iCloud Photo Library (and also Optimize iPhone Storage) on that same settings screen. Once the photos have had time to sync from iCloud to the phone they will then be in the Photos app on the phone. More details: iCloud Photo Library FAQ - Apple Support

When you turn on iCloud Photo Library it doesn't give an icon to access iCloud -- it syncs the photos themselves from iCloud Photos to your phone and vice versa.

Trying to state it another way:

iCloud Photo Library automatically syncs photos between all devices where it is turned on and the Photos app at https://www.icloud.com/

The photos will be on your phone, on iCloud, and on any other device where iCloud Photo Library is turned on.

Maybe you should provide more details.

If you simply had pictures on your 6s, turned on iCloud Photo Library and can now see them on your computer by logging in to https://www.icloud.com/ and going to the Photos app there -- that is all you should expect. The photos are on iCloud and they are still in the Photos app on your phone. That is all that is expected to happen. There is no iCloud icon or listing expected on your phone.

Devices are not meant to access icloud.com

That website is "blocked" from Safari on a device. You can get there by asking for the full website, but it is not a great experience. it is slow.

You can tap and hold the Refresh icon (semi-circular arrow) in the URL bar until "Request Desktop Site" appears and then tap that. The ability to do things is much less than when logged in using a computer.

If you have iCloud Photo Library turned on on your iPhone as you indicated to FoxFifth that you do, then your photos show up in the Photos app on your phone under "All Photos". Here are a couple of articles on iCloud Photo Library that may help:

iCloud Photo Library FAQ - Apple Support

iCloud Photo Library Help - Apple Support

Best of luck,

GB

I have a iPhone 5c. I have too many pictures on my phone. I want to see them in apple i cloud so I can delete some from my phone. How do I do that?

You can turn off iCloud Photo Library on your phone. Once you turn it off, you will have to sync the photos you want on your phone via iTunes:

iTunes 12 for Mac: Sync iPod, iPhone, or iPad

iTunes 12 for Windows: Sync iPod, iPhone, or iPad

Cheers,

GB