You have an evil mind, John. That looks entirely too much like a real camera.
One suggestion. The cradle that supports the lens looks like it was made to fit the lens shown. A cradle with a flat top, not with a cut-out concave upwards, would give more flexibility. I mean, the lens' barrel won't crumple if supported at one point.
And one question. Do you have a generic device to hold a lens in front of a shutter or is the one shown specific to the lens shown? I've been sketching designs for a generic lens holder, haven't come up with anything yet that's worth moving from sketch to wood and metal.