This interests me. It unsettles.
The shadow through the clay relief seems to create a barrier, and leaves a "barred" feeling to me. I shot a church with strong shadows of a tree across it having visited the churchyard soon after the tragic early death of a relative. I was bitter about the church (there had been serious claims in the news about child abuse), salvation and the whole religious philosophies thing. Probably deep in grief the scarring of the church icon in my shot was intentional. I asked for a review elsewhere and it was slated.
This brings it back.
If the shadow had beneath then it would have created a nice frame within the frame, as it stands it feels a little like vandalism but from your description there was no intention for this.
Sorry Christoph you did ask!