I've already left you one rating and one comment, but I'll just say it again, it's a lovely arrangement, without being so strikingly close to the original. I don't usually listen to mediocre stuff twice. Your cover made me go back to it.
Wow, Maxwell, Rex Regi Rebellis sounds great, just like your other covers! Now I went back to the piano ones, listening to some of your Finntroll covers at the moment. Just awesome.