Very enjoyable track man, really pleasant to listen. However i think it would sound even better with some slight changes to the pads/strings/percussion/whatever in the 2nd part. Or maybe some new element added, so it doesn't sound exactly like the 1st part.
It's SO FUCKING CHEAP to copy the first part and paste it after the middle break. I mean then it doesn't have a purpose when you're mixing it. It doesn't matter do you mix the first or last part, you'll never know whether the song is at the end or at the beginning. Leave that for the dub(bro)steppers.