This manga illustration is from FullMetal Alchemist Brotherhood (Chpt. 1, Pg. 52) is a good example of value structure and tonal organization. Even though you see a lot of scattered grey in the background, it feels like it’s not too much because of how it flushes out. But it brings a sense of intensity to the character. The character has a good balance of white, grey and black that differentiates from his skin tone, clothing and metal arm.