Nice song

To start off I like the sound of the synth you used. The progression switches up enough, so it doesn't getting boring. The song also builds on itself at a fair pace. The horn synth comes in at a good time, and adds another layer to the piece.

If there was something i would change about this piece it's that it seems to go by too fast. Even if you had listed it as a loop, I feel that it would get repetitive listening to this. I would recommend an small bridge part to change it up, and then maybe a return to the initial progression.

Otherwise, great job. It gives off a true "epic" feel.