Book Cover Concepts

I've been working on some cover concepts for the novel. I think I've mentioned by now it's a fantasy novel with themes related to classic computer games, particularly role-playing games. I'm fairly well set on the title, The Eight-Bit Bard, to evoke a blend of older electronics and fantasy. 

You can click on any of the images to get a larger pop-up to see them in detail. I'd love to hear your preferences.

Concept 1: A classic graph-paper map to further emphasize the computer game roots.

Concept 2: A lute and sword for the bard, but pixelated for a hint of computery-ness.

Concept 3: Simpler, cleaner. More old-time bard, less emphasis on computer.

Concept 4: More colorful, bringing back the sword.