Wrightson's former neighbor Walter Simonson, who lived in the same building as Wrightson in the 1980s, recalled, "Even at an early age, we were all really in awe of his work, it was so good." Analyzing Wrightson's skill in depth, Simonson explained that in addition to his ability to draw anything, Wrightson was a master of value, able to effect a precise command over the depth and tones of the colors and shades of grey in his work, stating, "In drawing or in painting, one of the things that you control is the value, which is the light and dark. If you were to take your color TV set and somehow turn off the color and just have a black and white and gray picture, you're looking at the values of those color pictures. 'Frankenstein' is a complete masterpiece of value, using incredibly complex pictures, and yet you always see exactly what you are supposed to see. He drives the eye right where it needs." Regarding the famously reproduced two-page spread from that work depicting Frankenstein's laboratory, Simonson said of that image, "It's so complicated and yet he's able to show you what he wants you to see. In some ways lab scene is the core of the story. It's where Frankenstein breaks the laws of God. I think people were just drawn to it cause it's so completely over the top and yet it's so completely controlled at the same time." Comics analyst and historian Scott McCloud called that image a "riot of detail", saying, "It might take a moment before you even notice the corpse laying at the bottom of the composition on the left. That makes it a bit more of a treasure map. Bit more of a 'Where Is Waldo?'"