A brilliant first minute-and-a-half.
Quite a different style to the other 2.
The more 'realistic' instruments make this sound like a battle-song - something cinematic rather than something you'd hear in a club.
The switches in mood and melody at the 27s, 1minute and 1:15 mark work brilliantly - naturally progressing and keeping it interesting without feeling forced.
The switch at 2:08 into the tune you used at the start of part1 doesn't really fit though - again, I don't like these abrupt switches of yours and the electronic vibe didn't really fit in with the classical melody you had going until then.
Also, from 1:15 to 2:08, I felt like you could have had a tiny bit more progression. Maybe the melody could have meandered, winding down instead of repeating. Maybe some more tinkerbells mirroring the beats that come in at the end...
As I said, I'm not a fan of the last 30s, but the slowing-down effect is cool.
Seems to me though that it might have been stronger had you kept this as a separate piece and had a more fitting ending. It feels forced to fit the others.