Nice the lock as a composition element. I still wonder if it could be possible to get in this case the picture sharp from front to end by choosing a very small diaphragm or would that takes away the tunnel effect.
Hey s.c., a little more depth of field would be nice, but I also wouldn't want that window with air conditioner to be in sharp focus. A compromise shot. Light was pretty low here, so not much room to work with the f-stop/shutter combo. Probably should have rotated the lock a bit inward, it's almost like a face looking out of the frame and drawing your eyes away from the picture, I think.
DoF is fine for me. I can see what you wanted to achieve.