Use an external tool to your website … or an application on your phone … load the photo with a swirling border already …
A simple way is to use PowerPoint if you have it.
Simply place the image in PowerPoint – then google "swirl edge transparent .png" and find a file to overlay at the top.
Then group all, save them as an image.
Go back to your site.
Assuming you have MS Office (like most) there is no software to buy, and it's easy to fix!
Or you can post the photo here and the edge of the whirlpool and I'll do it for you. 
