Stargate Painting - Work in Progress

Atlantis gate room window! Acrylic paints on 8 x 10 inch canvas. The background is blue with an overlay of shiny silver and the bronze is also metallic / shiny! I don't know what colors to put in the center yet. Green and yellow of some type, I think, should be included in there somehow. I just am feeling at a bit of a loss. I should go look at pics of the set again - I know that will be inspiring :-)