Annoying
The sounds are too bright. And...as usual...the sounds are all too loud. Everyone on Newgrounds likes to max out the sounds so that when people play it, their ears explode.
The percussion is pretty decent, except for the fact that it NEVER CHANGES.
The melody is good, but you need more variation, otherwise it's just a loop, not a song.
Congrats on making the top five. I don't think you really deserved it, unless there really was nothing better out there.
Things to improve on:
1) Work on counter melodies with unique instruments with different tones to counterbalance each other. This can add so much to your music.
2) Percussion...Make it less predictable and more fun. What you have is good, and for a loop it is good. But if your going to classify this as a song, it needs more.
3) Sound...Don't max out the sounds, although it may be tempting, it is better to start out soft to allow for dynamic changes. You do have a dynamic change at around 0:55 that I liked, put more of those kinds of things in your music.
I hope you find this review helpful. It may sound harsh, but I am a critic and I will tell you what you need to hear. Keep at it man, this has major potential!