You should use a silhouette instead of a simple 'E' to represent the enemies in that turn bar up there. The 'E' alone stands out too much, I think. And you can always use the same silhouette for a various range of enemies so that's not much of a problem.
Also, the way the hero party is arranged seems odd to me. You can't see the feet of the character at the bottom. And the up-most character looks too close to the wall. If they weren't too spread from each other they'd even be aligned to the enemy party.
Regardless. This is a very nice screen, the balance between warm and cold colors makes it very appealing. And the custom graphics are of great quality.