Automator Create Folder With Taking Name of the Parent Folder

That's way more steps than I would try to get into an Automator workflow when there are so many easier paths. In fact, this can be done with a one-line shell script (which, to be fair, you could invoke via the Run Shell Script Automator Action):

find /path/to/source -mtime -30d -exec cp -p {} Backups/{} \;

This will search the directory /path/to/source (which you should change as appropriate) and locate any files with a modification date within the last 30 days ('-mtime -30d'). It then executes a cp -p command to copy those files to the directory named Backup

Now, there are some caveats that you haven't covered - namely, what happens to files that change frequently - this would overwrite previous backups with the current copy. Do you want to keep version histories? I which case you need to add another step to create some kind of date-based directory structure before invoking the find.