Good Armor Texture?

Im making a texture pack no theme chosen yet, Im just a beginner.

Im starting with armors first.

I intend to make the textures based around these.

( Iron Helmet )



( Iron BreastPlate )



( Iron PlateLegs )



Are These Good?

And Any Possible Themes The Could Fit Around?

I like, I like.... looks like it's sorta halo themed armour

In my opinion, this armour would suit a Sci-Fi theme

Looks good.