I really like the ambient background effects. At 0:45 the lead keyboard switches from its intro to playing a melody of all whole notes; I definitely prefer the former to the latter. The melody is nice for a few measures, but it soon seems like there ought to me more complexity to it. Going back to an approach like in the intro seems appropriate at that point. If the keyboard is really meant to play more of a background role than a lead at that point, maybe back off its volume or increase the volume of the other instruments to let them shine through more.