Yiruma would be proud
Ah, river flows in you, one of my favourites of yiruma, next to kiss the rain. Did you played it by yourself on keyboard? You made some really "crashy" mistakes, like 0:18. Would be great if you fix this. And I think you played the beginning until 0:14 too fast. It kills this "dreamy feeling" of the song. Try to play it a little bit slower.
I think the strings, the bass and the drums match great with the song. I like especialy the part starting 2:16 - the drum sounds really good. Why a fade out?
But still, its a good cover version, I like it.