quite good!

Quite a nice score for the most part. This all has an early nobuo vibe, like something from FFIV or V

Piano is a little drab, like the other guy said. I didn't like the solo melody sections, none of them really felt like they were necessary because they didn't go for very long at all. See if you can elaborate on them a bit.

I'm not going to let the soundfonts change my score, but I think you should really consider getting some good orchestral samples because the ones you're using aren't great. EastWest have some very good ones and so do Edirol, but you'll have to pay out your ass for the more complete packages because they are incredibly expensive. For piano you should check out Pianoteq, it's a modelled piano with incredibly versatile tweaking options.

Keep it up, this is quite nice :D

Here's my two cents

Very nice start! I can definitely hear the electronic influences here...

Mostly in the strings. They start off too loud, which might be good for catching the attention but if they don't go anyway else volume-wise, it might starts sounding like a synth more than strings. I'd suggest starting them a piano and then raising to a forte. You can adjust velocity in Reason, can't you?

The piano sounds very nice, though, maybe if the strings backed off a little bit you could pick it up better. The bass part is difficult to hear for me.

But composition-wise, excellent job. It reminds me a lot of Egypt, and the floods that happened every year. I don't know what your goal was, but the song gave a sort of destructive, drowning feeling. Then there was a line I heard around 2:37 that sounded like it came straight from a desert folk song.

Keep on the great work!

-Lamp

Not bad

Some parts are inspired - given this is your first attempt to do classical music.
But the whole lacks of structure, and the piano part is minimalist, in a bad way.
Also lacks of tempo and velocity variations. Would have been better if contrasted a little more.