Compositionally, these are pretty good. Some of the french horn articulations used in Battle theme 6 didn't quite seem natural. And the trumpet lines in Battle theme sounded artificial as well. I think a lot of the problem may be that everything sounds really dry. You need more reverb to my ears. The instruments don't sound like they exist in a space. Some reverb would add a lot of ambiance and tie everything together a bit more. As for the french horn parts, try getting them to flow together smoothly and naturally. This can be very challenging, I know. But it's what's keeping a good piece from sounding great.
Keep it up! You've done well.