Hey umma08,
I see that you are looking for some photos from your iPhone 4s. Here is some information for you about iCloud backups that should help answer your question about the photos being stored in your backup:
iCloud automatically backs up the information on your devices—iPhone, iPad, and iPod touch—over Wi-Fi every day when they are turned on, locked, and connected to a power source. With your device information backed up in iCloud, you can easily set up a new device or restore information on one you already have.
Here’s what iCloud backs up:
Purchase history for music, movies, TV shows, apps, and books
Your iCloud backup includes information about the content you have purchased, but not the purchased content itself. When you restore from an iCloud backup, your purchased content is automatically downloaded from the iTunes Store, App Store, or iBooks Store. Some types of content aren’t downloaded automatically in all countries, and previous purchases may be unavailable if they have been refunded or are no longer available in the store. For more information, see the Apple Support article iTunes in the Cloud availability by country. Some types of content aren’t available in all countries. For more information, see the Apple Support article What can I buy from the iTunes Store in my country?.
Photos and videos on your iOS devices, unless you turn on iCloud Photo Library beta on your iOS 8.1 device. If you turn on iCloud Photo Library beta, your photos and videos are already stored in iCloud, so they aren’t included in your iCloud Backup.
Device settings
App data
Home screen and app organization
iMessage, text (SMS), and MMS messages
Ringtones
Visual Voicemail
Your iOS device backup only includes data and settings stored on your device. It doesn’t include data already stored in iCloud, for example contacts, calendars, bookmarks, mail messages, notes, shared photo albums, iCloud Photo Library beta, My Photo Stream, and documents you save in iCloud using iOS apps and Mac apps.
iCloud: iCloud storage and backup overview
https://support.apple.com/kb/PH12519
In order to extract these photos, you will need to load your iCloud backup file onto an iOS device:
iCloud: Restore or set up your iOS device from iCloud
https://support.apple.com/kb/ph12521
The following information might be helpful to you as well, once you have restored your backup:
Get help finding missing information in iCloud after restoring an iOS device - Apple Support
https://support.apple.com/en-us/HT203768
Thanks for being a part of the Apple Support Communities!
Regards,
Braden