I Need Some Help!

I need some help with this piece. I like it, but I don't think it's very good (if that makes sense), so if you think that you could do something to make it at least a little bit better, then let me know in the comments.
RULES:
1. Only change something if you are absolutely confident that you can make it better.
2. You CAN lengthen the song.
3. Don't join just to ruin it.