How to download pictures from iCloud
Step 1. Launch the program and sign in your iCloud account
At first, download iPhone Data Recovery software and install it on the computer. After running the program, move to the mode "Recover from iCloud Backup File" on the top of the main window. Then input your Apple ID and password to log in your iCloud account. It's absolutely safe because the program won't keep your account information.
Step 2. Download your iCloud backup file
Once you've logged in, you can see all your iCloud backup files displayed on the frame. Select the one that contains the photos you want, click "Download" button to extract the iCloud backup file.
Step 3. Preview and download iCloud photos
When the download completed, all data from the iCloud backup file will be displayed in categories. Check the items Camera Roll and App Photos under Photos and Videos, you can preview all the photos from the iCloud backup. Check them in detail and choose the ones you desire. Then click the button "Recover" to download pictures from iCloud on the computer.
Downloading photos from iCloud should be a simple thing with the steps as above. Download the software and do it by yourself.