Below are some sketches and photos showing the progress from rough idea to completed signboards.
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After a few initial thumbnails, this was the final colour sketch I drew up for the 2 sides of the signboard. Originally, I was hoping to find some way to have the top of the heads protude above the sign, but that proved unfeasable.
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Here they are in progress at the studio. The boards were just over 4 feet tall by 2 and 1/2 feet wide, and I painted them in acrylics.
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And an installed view of the final boards. Not much difference from sketch to final, just a few minor tweaks here and there on the images.