Here's the initial mockup of your design, along with a closeup of the center elements. The US flag has been replaced with a high res version of the exact flag in your original. The maltese has been redrawn, and is now smooth and symmetrical, with a metallic border. The outer type and the 9/11 badge have been redone.
The belt is slightly enlarged to give the central artwork greater presence. The hands have been drawn from one of the photos you'd submitted. The helmet has a similar badge to the one in your photo, with the lettering and the firemen's scramble. We put the "Brotherhood" inscription on the belt, with the "Est" line toward the bottom.