Rejected due to quality my photo

What is the black line at the top? The shadows are underexposed. If viewed at 250% you will notice a white halo around thge roofs. I agree, too much empty space.

Next time, please post the original photo.

This isn't the size as submitted, but even so: it's out of focus and when you look at the trees to the left, you see chromatic aberration. The picture looks as being shot by a small sensor camera, with missing details. The extreme portrait look is not helping this picture. It would be better to have more data to the left and right, to make the picture more usable.

Hi, that's a really nice scene.  As far as the quality issues are concerned, the focus looks a little soft on the building/castle.  Also, the shadows are pretty dark right beneath the building.  I would try raising them a little.  If the focus is soft there isn't much you can do about that.

Lasty, I don't care for the portrait oreientation of the photo.  I think it would be more visually appealing if it were in landscape and more closely cropped on the building.  You don't need that much water and sky.  Best regards, John