 After being accepted by Top Cow, Fialkov crafted the story mostly by himself, although he did adapt the script to Ekedal's style.The art in "Echoes" is completely black and white, which was more affordable for the artists, but also because Failkov felt grayscale was more effective.The artistic style was inspired by the Warren Publishing horror comic books "Creepy" and "Eerie" from the 1960s and 1970s, which both Fialkov and Ekedal enjoyed.