At first I didn't notice the clipping, but now... Aha. Too much reverb on the percussion I think.
Generally, I would advise against using FL preset drum sounds, especially the hats. Try these:
http://www.vipzone-samples.com/freesamples.phpBut yes, otherwise nice progression, nice synth sounds. Piano work is neat too.
I would also agree that it's too long. I'd cut it by maybe three minutes.
And to end on a positive note, I always love your melodies and moods in your music. Keep at it!