Well done.
Real coincidence I guess, but I had just gotten back into playing Skyrim since forever ago and recently downloaded a bunch of the OST from the game. 'Explore Day' is definitely my favorite along with most of the initial songs you encounter including your cover of this song.
As far as your song goes my only gripe would be having more prominent vocals. When it comes to something like this I like to pay attention more to the singer than the background music if possible. Otherwise again, well done!