It applies a style of Yuri Schwedoff artist to your image.

The main tag is Schwedoff_illustr.

Face detailer is optional.

Additional style tags:

Strong:

clouds, grey sky, black ground, black hair, hood, dark, white eyes, dark grey sky, grey background, moon, floating

Weak:

mountain, rock, blue sky, waves, glowing sword, white sword

You also may support the original artist: https://yurishwedoff.artstation.com/