Actually, these are all pretty good. I think it would be neat if you could use them as illustrations in an opening sequence with some cool, epic music blaring in the background with a voice-over talking about the Tales of Hero’s Realm, sort of like what they do in the Legend Of Zelda or Breath Of Fire games when recapping various stories and events.

I like the composition of 3, but 2 would be great if the characters were a bit closer and larger.

No Kentona! Don't listen to these fools! stick with 3!
You know in your heart of hearts this is true; stick to 3!

Jokes aside, 3's great! the only thing I'd change is the magician with the wand at the top: instead of having their arm and face to the left, Have the wizard look directly at the reader, but partially to the right, arm out towards the monster, wand extended, maybe casting a spell or something with the other hand or something. You want something that's gonna grab eyes and turn heads; 3 is balls to the walls, monster-butt-whooping-action! tis the very definition of Hero's Realm! The wizard needs to look like they're getting ready to cast a badass spell to take out that monster that's partially obscuring the cover to the right, but facing slightly towards the reader and the monster; doing this will draw your readers eyes more to the center.

I wish I could find an image to show ya what I'm talking about. If I have some time, maybe I'll quickly draw up a pose or something.

EDIT: Maybe have the Monk on the left throw a badass sidekick. Regardless, 3's a winner for me.

author=kentona

author=zaeran
I like the composition of 3, but 2 would be great if the characters were a bit closer and larger.

Isn't that 1?

I guess, I don't know if the tower in the back is different between 1 and 2, but the 2nd one has a bridge of some sort that is distinct in the silhouette