green octopus logo: technological symmetry and dark cyan s

green octopus logo technological symmetry necronomicon illustrations dark cyan light black psychological phenomena bryan hitch intense use shadow tattoo color design background white eyes style theme art symmetrical effects unique eyecatching creative artwork mysterious artistic expression logo: tentacles spread background showcases emerald palette creating ominous vibe lighting usage realistic enhancing effect combines elements neo-pop iconography adafruit illustrations depicted silver tones hints green