I like this, but I don't really understand the part in the middle. There's a new sound that's introduced that I didn't really hear or notice in the first half of the song, and it kind of sticks out. I don't understand why it's like that, but I feel like it would blend in better if you subtly introduce that sound earlier in the track before fully unveiling it.
You could do this in the form of a fragmented melody or rhythm that's similar in composition and key.