Professional Sounding
They don't want you to write a description, they want you to write "Author comments". Say stuff about how you made the song, what inspired you, if you had help from any friends, the things you learnt whilst making etc. The song itself is fairly generic, the instruments are all typical of the genre and the guitar riffs weren't exactly mind blowing. However i enjoyed the quieter section at 1:40 and the choir sounded nice. The song is a little repetitive, perhaps some vocals could add some interest? The sound production is great and all the instruments sound nice. Perhaps a little to much reverb at parts.... You obviously know what you're doing so i just reccomend you experiment a little more. Good stuff!