1. The terrain seems like it was generated on a vanilla seed. That's a general no-no.
2. From the screenshots provided, we don't see much of the map. I would suggest taking wider screenshots of larger areas.
3. The pedestals at the cornucopia do not look like they are evenly centered around the chests. This is also a huge no-no. I would recommend fixing that.
4. Download programs such as World Edit or Voxel Sniper. Those are great programs for terraforming. Hire builders, terraformers, and redstoners with significant experience to make the best map possible.
As for this map itself, I'm sorry to say that it's just not that good.
Sorry.