[348] The fall of the goblin king

Hello! This is a short story I made. It isn't a part of anything bigger, I wrote it solely to get feedback on my writing. English is my second language so there might be some weird quirks in my style of writing, but please still point them out. I am looking mostly for feedback on grammar, syntax and style, but I want to get general feedback on everything I did wrong/right.

Here is my story: https://docs.google.com/document/d/1_BL-QBp28UoC-FM_QBJppQG7HAjd0uVakqOVzU-Fn9s/edit?usp=drivesdk

And here is my critique: https://www.reddit.com/r/DestructiveReaders/s/286mnTkPks

Thank you all in advance