Q: how do i get photo of my iCloud to put back on my computer

On your computer you can go to https://www.icloud.com/ and click on the Photos app there and click Select Photos. After selecting the desired photos you can then click the download icon.

You signature indicates that you have a Mac running OS X 10.6.7 but if it was running 10.10.3 or later another option is to sync all of the iCloud photos to the Photos app on your Mac.

You can also do a manual download at iCloud.com/Photos. Click Select Photos, then hold down the option/alt key while selecting the photos. Then click Download.