The depth of field and the crisp images in this shot are great. I also love the selective desaturation. Great motif of doors and windows. This is a nice change of pace from all the shiny metal in this challenge is is one of my favorites. Nice shot and processing. 10
By the fact that it's the only element in the picture that's in color, I take it that you meant the rusty hinge to be the focal point of the composition. If so, it's generally better to have the FP farther from the border of the image, lest too much of the image become dead space distracting from the focus.
Composition: 4, The hinge doesn't take command of this image, even with the desaturation.
Technical: 5, The single extra bright screw head just takes over. You need to subdue it.
Appeal: 4
Challenge: 7, The mechanical portion is not strong enough in this image.
Overall Calculated Average Score: 5