city billboard mockup captivating white board tiled room illuminated sides pristine white walls city billboard mockup captivating white board tiled room illuminated sides pristine white walls generative ai rgb editable psd 4k billboard design urban advertising mockup template digital billboard advertising display white board mockup tiled floor interior design mockup lighting effects high-resolution mockup cityscape advertising creative billboard modern billboard design digital marketing mockup advertising mockup urban design billboard presentation marketing visuals professional mockup advertising visuals city advertising billboard showcase mockup design tiled room mockup illuminated billboard white wall mockup creative design mockup urban marketing advertising strategy billboard graphics digital advertising mockup customization billboard layout visual marketing advertising creativity mockup versatility billboard aesthetics marketing innovation