Renaming raw files in subfolder

I am new to hazel and I am trying to perform what I thought was going to be an easy task, but it has not.
Example:
I have an master folder on the desktop "pics" and I will be placing folders (example "pool") with raw image files in them and I want to rename the files in this subfolder to "pool 1", "pool 2" and so on.
I have tried the subfolder rules "greater than 0" and "is 1" along with the "kind is raw" or "extension is .cr2".
I then tried "run on folder contents", but I can only get down one level.
I need help.
-Thanks
Example:
I have an master folder on the desktop "pics" and I will be placing folders (example "pool") with raw image files in them and I want to rename the files in this subfolder to "pool 1", "pool 2" and so on.
I have tried the subfolder rules "greater than 0" and "is 1" along with the "kind is raw" or "extension is .cr2".
I then tried "run on folder contents", but I can only get down one level.
I need help.
-Thanks