Ehhh
Not bad, I liked the intro.
That melody you brought in at :41 did not go with the main melodies return at :55 (the only thing I can see it being used as is some weird chase scene)
It just didn't really go with it, it was out of harmony. . .
I liked your synths and the drums weren't bad.
Only thing is the main part of the song was a out of tune or something. . .
Good effort, I can't really suggest some moderate changes cause you really have to pick between one of the two melodies, the dark one or the happy one.
It like trying to play in G maj in your left hand and F minor in the right. . .
Just doesn't mix well.
If you use the happy part, try picking something (maybe even the dark sounding synth) and then alter the notes in it so that it goes along rather than against the main melody.
Omega