Hey, that's pretty good!  The echo-ey sounds actually seem to match the piece, and I thought they went along with it just fine.  The orchestra still sounds like its computerized, but you're not going to get away from that, my friend.   For a program though, it sounds pretty good.  I like how in lots of places you have the winds (maybe its the brass?  not exactly sure....) taking the lead while the violins play a nice back-up and keep a feeling of movement going. 

Awesome job!  And you wrote it in four hours?  That's crazy man......you've got a real gift there.