The first and last minute are great...

It's just in between those two points that more changes/build ups need to be happening... It just gets too repetitive! You might want to consider changing the drum beat entirely in that area, or changing a lot of the sounds/adding some type of melody, bass line, etc. People can only listen to the same drum beat for so long! I think that the end is the most creative/my favorite part. I like orchestra sections in electronic songs, and I like how it ties the beginning drum beat to the end... I just think the beat should take a scenic detour before it gets there! Cheers!