Nicely done.
Reviewing as I go:
The subtle entrance of the strings at 0:13 is awesome. I almost wish the piano in this section was a little quieter, but then again the emotive power of it is quite effective.
At the 0:35 mark, the lower notes I think could use being a little quieter, just to emphasise the absence of the strings a little more.
I love the semi-absence of the strings in general. Insofar as even when they're playing, you can barely hear them; as if they're an echo themselves. Given this is meant to symbolise wind, it works very well.
1:06 is genius. The fluidity of the next minute also works well, especially given the subject matter.
The final chord could probably be fine without the strings added in. Simply because the echo on the strings at around 2:55-2:58 seems a little unnatural, Which is a shame, because the piece in general is very good. It's got a great air of melancholy. The piano sound is a little harsh at times, but apart from that I can't fault this. Looking forward to hearing the next two pieces from this, definitely.