Hey guys.
So I was out taking pictures today, using a Yashica Mat-124, and everything was going good. Until the last picture. The camera was a little loose on the tripod so instead of taking the the camera off and tightening it, I twisted the camera on the tripod to tighten it. And because it was a Yashica Mat, this opened the back. This must have happened while taking the last shot of 120 film.

So my question is, how bad is this going to be when I develop it? I really loved that last picture I took and it would have made an excellent print, but now