Second: To make some more noticeable interesting sounds or creative fx, just take your chord progression, fill it up with quarter or halve notes on each note, and slightly automate the panning to left and right. (So lets say: 40 left and 40 right) A lead in higher notes than your main lead for instance. (*notice that the lead should be in the background, and not in front, otherwise you'll put all of the interest in that lead, which you don't want because it should be a interest creating lead.) Though i like what you did with the second lead in the climax, that's a very interesting lead...
And for some other FX, just make some FX kicks, and like noali said, put them either at the last 4 bars from every 32 bars, or 2, depends on what's good. And my last tip would be to try to make your main break to the climax shorter, imo it's a bit too long.. Just try to make it shorter by 32 bars or something.. Because it's a little too long you might become less interested in a sort of way.. doesn't always have to be, but this is just my opinion..
So i hope you've got something on my tips man.. I'm not saying that ''YOU'LL HAVE TO DO THIS OR THAT'', but i'm just pointing some things from my point of view!
