You took everything I liked about the original song and turned it into something that sounds even more epic. Great job.
You've got an awesome instrument variety that I frankly envy a little going on here, and the arrangement is pretty creative, but the mastering needs work. The whole thing's got a bit of static going on, and there's a slight bit of distortion around the accordion at the one minute marker. Also, while it could be a lot worse, your instruments all seem pretty loud, and fight for attention quite a bit.
There's worse things, certainly. Your ability to arrange the instruments creatively and make something original out of an established melody are pretty up there, you just need to hone in on your mastering a bit more.
You have use nice sounds in this remix
Please contact me if you would like to use this in a project. We can discuss the details.