It seems like it is a good start. Short for a chapter though. I find one thing a little disappointing though, this is extremely similar to the start of Majora's Mask. Link, riding alone in a forest, Majora's Mask scares his horse, Epona runs off and link falls, at the end he falls down something that seems endless with tons of symbols. Since your trying to make something that obviously takes place after Majora's Mask, I would suggest give the reader a sense of how old Link is. Judging by what Link says about Ganondorf, I'm guessing it's the adult link from
OOT possible 4 or 5 years after which means this takes place 13 or 14 years after Majora's Mask. There's no real age given but since he was raised as a Kokiri who never grow up I'm guessing Kid Link was 12 years old so in this story, Link is in his early 20's. Maybe mention how he is a grown man. Personally, when I read this I imagined someone much younger. These are all opinions, the most important being, try not to use to much more thing's from the original game. Refrences are fine but the way this scene went was very close to a copy of the first scene of
MM. Other then that it was good. Everything is very descriptive which is helpful to the reader.