Art or Error?

Loose Film and light leaks leads to an interesting photo...? 

I was using my old Argus 75 twins lens 620 film camera using a rewound roll of 120 film onto a 620 spool.

Clarification: 120 and 620 film are the same size. The only difference being the hole in the ends of the spool are slightly different sizes. Thus, these days, if you want to use an old 620 film camera, one has to purchase a rewound roll of 120 film. I got this one through one of B&H Photography's website. Obviously you takes your chances with this type of photography. However, it is a colorful shot.