I thought the selective coloring was supposed to be bleeding around.
The blood of christ WOULD be on the cross, after all, and also be a doorway. I kind of liked the allegory. A bit heavy-handed, but Christ allegories usually are.
I would move the camera a little bit to separate the cross from the architectural stuff around the steeple. It's nicely lining up with some things up there on the top of the church, but it's too close to them and it's a bit visually confusing, AND it de-emphasizes the cross. I think a slightly higher camer position, slightly to your left, just to visually drop the cross in the frame (just a little) would help. Obviously the point is that the cross is looming over the viewer, so there's a bit of a balancing act here.