The notes sound right, notes are all present, clearly who created this isn't tone deaf. It's a little loud and slightly off-key in some parts but I blame the instrument at that point, can't really help that. I dub thee: "Best Solo Field of Hopes and Dreams - Toby Fox for MS2" song I've heard so far. Keep it up!
As for the song itself, for someone who never played Deltarune, hearing this song can make me and many others shed a tear of being reminded to stay determined, for it is a truly great tune.