Composition: 5, I feel you are too centered and too straight on
Technical: 9
Appeal: 4
Challenge: 8, subject a little weak as there are many things that show more mechanical attributes.
Overall Calculated Average Score: 7
Less DOF might work here. A little more pop on the lock, light-wise, would help... I donno, it just seems kind of blah, but it's a nice sort of blah, if that makes sense?