Earlier quoted context omitted.
The Cloud Drive terms[1] don't sound like they're particularly interested in the contents of your photos, however they are somewhat vague. Section 3.3 seems to have the meat of it: 3.3 Our Use of Your Files to Provide the Service. We may use, access, and retain Your Files in order to provide the Service to you and enforce the terms of the Agreement, and you give us all permissions we need to do so. These permissions…
Quite helpful. I think a part of note is "...and enforce the terms of the Agreement" as it might relate to content that is not permitted. Would be helpful to compare/contrast with any statements regarding uploading of copyright material not copyright of the account owner, which seems like the typical pretext for basic overview? Just musing here.
1.2 Using Your Files with the Service. You may use the Service only to store, retrieve, manage, and access Your Files for personal, non-commercial purposes using the features and functionality we make available. You may not use the Service to store, transfer or distribute content of or on behalf of third parties, to operate your own file storage application or service, to operate a photography business or other commercial service, or to resell any part of the Service. You are solely responsible for Your Files and for complying with all applicable copyright and other laws, including import and export control laws and regulations, and with the terms of any licenses or agreements to which you are bound. You must ensure that Your Files are free from any malware, viruses, Trojan horses, spyware, worms, or other malicious or harmful code.
1.3 Sharing Your Files. The Service may provide features that allow you to share Your Files with others. You may only share Your Files in which you have all necessary copyright and other rights. If you share a file, anyone with access to that file may view and download copies of the file. You are solely responsible for how you share Your Files and who may access Your Files that you share. You may not share files (a) that contain defamatory, threatening, abusive, pornographic, or otherwise objectionable material, (b) that advocate bigotry, hatred, or illegal discrimination, or (c) if sharing those files violates any law, any intellectual property, publicity, privacy, or other right of others, or any license or other agreement by which you are bound.