Demon Slayer [ AMV / VISUALIZER ] - Moonlight 

My advice don't try copying anyone an unique amv is better than replicated one pick a beaty music u like stick with it put it in video editing software keypoint all the beats then search the amv subject ur doing in my case action scenes and put it all in the editor one on top of other and go through each one identify the scenes and tell a small story through it or Visualize in ur mind then make it reality GOOD LUCK Editing