Flexible and easy to use Photoshop actions which creates spiral collage from single image. There are total of 9 different effects which can be customized by hiding some of pieces. Final effect are pieces of original image on separate layers.
There are only two requirements: you must have only one layer in document: Background layer and image must be 5×7 or 3×2 aspect ratio. Aspect ratio are proportions Width versus Height. Ratio 5×7 means image should be 500×700px, 1000×1400px, 2000×2800px and so on. Pixel dimensions and resolution pixels per inch does not play any role, only proportions. Most of images are 5×7 and 3×2 ratio but anyway you can easily meet this requirement simply by choosing one of two ratios for Crop Tool in Photoshop or Camera Raw/Lightroom. If you have any doubt or difficulties just read PDF hel file which ships with product and test files.
Here is link to video tutorial on YouTube http://youtu.be/auIQCPQL1KY. As always I will recommend you to test files using one of actions included in package https://drive.google.com/file/d/0B7jwCn42QfO6Z0FZSEhDWjY2N2c/edit?usp=sharing.