Here is my Black Knight. He's a Secret Wars Captain America body with a Slayer head sculpt (these still turn up on ebay occasionally). The tunic is from a Scarlet Spider and the emblem is a custom waterslide decal I printed instead of trying to paint it. The cape is from Thor and the sword is from the three pack Captain Britian.
His cape clasps are Kotubokia greebles.
He's painted in acrylics with Testors' enamel for the gold bits.

This was my very first custom and I'm stil happy with it, though I might update it some now that I'm more advanced in my skills.
Excuse the poor photography- I'll update the pics soon, promise!