Tweeks:
	
on the metal
	reflection raised significantly esp the lower or coincident
	value ( .1 .6  ->  .6 .9 )
	specular roughness tweeked up by ~ 50x ( now .12 )
	color changed to try and match the brass in the reference
	(rather than gold) ( rgb CHSL2RGB( <70,.12,.29> ) )

on the enamel
	desaturated the colors by 50% and tinted the white marks
	lowered specular 3x ( -> .2 ) but increased specular roughness 	 
400x 	( -> .4)
	increased reflection slightly ( .1 .3 -> .2 .4 )

changed the photo behind the camera and increased its ambient

desaturated the lights so they still vary, but across a smaller color 
range and are all much closer to white

included a shot of the reference

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