Personally, I think it's..
Too slow and some notes is out of tune.. it's just sounds weird on my ears - and the violin echo in the beginning is disturbing, makes the note harder to read. The violin stopping on 00:58 is very very weird.
But the ending is good.
I know maybe you want to make it mellow, but you can add piano on the back and cello (orchestra-like). Listen more to the original song, maybe you'll know where you're wrong.