I am getting near releasing my game, and the game's trailer is important to sell the game.

I was told the game needs to show what the game is like, but I think it also needs to appeal to the person viewing the video.

I think this trailer achieve the first, but not the latter… I got an advice to show something really epic, like maybe getting near to a boss fight… how can I improve this trailer?

For context, this is the store page:

https://store.steampowered.com/app/1292410/Golden_Fall_2/