Now this is the Dark Knight.

That looks amazing. Much better than the current "Dark Knight" suit, where Batman's head is bigger than his torso. Batman doesn't kill though, so I don't know how I feel about the longsword.

Why is there no bat on his breastplate?

Looks like it's on his shield, which makes a certain amount of sense for the period.

Very catchy bit of art!

Interesting (though I thought this would be artwork from the medieval Justice League).