Vector-style digital illustration of a hand reaching in from the top left of the frame, rendered as a flat black shape with a warm coral rim-light along its upper edge, fingers grasping a short glass tumbler containing a single glowing ice cube in mint green and cream tones, the glass casting a long hard-edged shadow across a peach-and-lilac gradient surface, deep saturated indigo-blue background above the horizon line, dense uniform grain texture across the whole image, minimal geometric composition, retro poster illustration style, high contrast