Working on matched folders & its contents.

As a new Hazel user, I'd like you guys' opinions on whether this workflow I have in mind is achievable with Hazel:
In "Downloads" folder
Look into the content of any folder whose name ends with "/png"
Delete any PNG files inside those matched folders (but ONLY PNG files).
Once done, rename that parent folders so that the names no longers end with "/png"
THe idea is that if I need to delete all PNG files inside a folder, I only need to put "/png" at the end of the folder's name, and Hazel will do the rest for me.
Any help would be appreciated.
Thanks
In "Downloads" folder
Look into the content of any folder whose name ends with "/png"
Delete any PNG files inside those matched folders (but ONLY PNG files).
Once done, rename that parent folders so that the names no longers end with "/png"
THe idea is that if I need to delete all PNG files inside a folder, I only need to put "/png" at the end of the folder's name, and Hazel will do the rest for me.
Any help would be appreciated.
Thanks