Mario,
A nice atmospheric piece.
I think most listeners would have no idea the violin "isn't real".
Since it is hard not to key on the violin (having it noted specifically), for me it seemed a bit "too smooth".
More vibrato would help. More than that, though, it seemed to lack drag-of-the-bow sounds (i heard a couple).
That's being real picky.
It's nice of you to demo all these cool instruments for us!

fj