Synthwave Monochromatic Portrait with Bokeh

A detailed prompt for Nano Banana Pro (v.017) to generate an artistic, high-contrast, monochromatic blue portrait in a retro late-night synthwave aesthetic. It specifies a profile view of a subject wearing oversized black sunglasses, set against an out-of-focus background of vibrant neon bokeh and blurred casino lights, emphasizing heavy duotone effect and analog film grain. Via YouMind OpenLab prompt library (MIT).