Make sure to Enable Special Effects, Light in (Advanced),Disabled Display Name and Stats,Enable Particle Effects and Brightness to Phase 9
Hide Item Explanation (if any)
Remember to face on the light(sun) and zoom in..
and for those g12 with gears wait for your armor to glow
(to help more detail)
try to do anything else that can help making ur Screenshot more detailed and High Quality!
hope it helps