Well, guessed the exposure on this one and handheld at 1/100th with a big medium format camera (Omega 120) that I inherited from my grandfather when he passed away a few months ago. Shot in color, didn't like it, made BW and scanned at home on my flatbed office scanner. I know, quality isn't good but I still like it
Are the artifacts "man made" ? You did a good job of dust and scratch adding. My Omega had a problem with light leaks. I traced them to the magazines, so I replaced the felt, and that cured it. This is a fine camera, and was well thought out, you should have a ball with it, but make sure it's light tight, you can always add softness, scratches and Age.
Tom