You did very good composition obviously. Don’t worry about the mix everything sounds great.
But it is a bit complex and personal composition I think. Here, buyers need simple but attractive tracks at the same time. It was like you are shifting genres - I mean the bell part and the brass. It would be better if there wasn’t that brass part. But the first part is great for media compositions.
Here is my tips:
- Don’t put lots of themes in one track.
- Make more simple arrangments.
Actually, there isn’t so much to say but let me give you an advice. You can turn this track into a short logo. It is a great melody for intros etc.
Keep composing, mate!