I'm really loving this super dark patina finish on bronze - something I happened upon by chance by leaving my bronze pieces in liver of sulphur overly long. I can back to find everything completely black like soot. I gently buffed off the high spots and really like the contrast and rich character I found. I then gently added some heat patina to deepen both the bronze highlight and sooty black patina areas. This added to the drama and I'm anxious to try more with this technique.