Here's your design with finishing effects, and a couple of closeups for detail. We gave the interior of the maltese an interesting texture that has green overtones which help separate it from the background. The maltese trim is a smooth metallic border. The lettering is now a very shiny metallic green, with a yellow outline that defines it clearly against the darker background. The red bar and shamrock are embossed to create a 3D look. The lettering and the red bar have distant drop shadows...this pronounced shadow casts dramatically across the shamrock, giving an impression of depth.
The previous mockup is at the bottom.