Is there any way to restore deleted photos?

You can try to recover your Photos. The best way is from a computer. On a computer, sign in to iCloud.com using Safari and your Apple ID. Then, click on Photos. Near the left top on your screen you'll see Recently Deleted. Click this tab and you'll see which photos can be recovered. If you select one or more of them, a Recover tab will appear. Click it and the selected photos will be restored to iCloud Photos. To download them to your computer, use Download iCloud photos and videos  https://support.apple.com/en-us/HT209454

Try checking the Photos app for a Recently Deleted album. If they aren't there, try the above.