Sunset Castle

A small but old castle. I am not 100% happy with the result, but I cannot grasp it why. The foreground is a bit boring, even thoigh the tree is not to bad.
Any Idea how to do it better?

[KoalaGardens🐨]

the sky colour is wonderful. maybe cropping would have helped - the foreground light on the grass detracts the eye a bit?

[Ricksnap]

Lovely sky colour - I’m no expert, but I’d dump the tree (too dominant) and foreground altogether and concentrate on the castle and sky, and position the castle via the rule of thirds - so you end up with (heavily) cropped shot with silhouette of castle against a lovely sky

[Ellen Bogenschutz]

I agree with Rick, one subject is best. But! you were there at the right time to capture that wonderful sunset/sunrise.