Mobile App Developer Promo Cover

[Format] Landscape 16:9 gig cover, bold blue-to-teal gradient promo with a cut-out portrait and a striped corner accent. Clean vector finish. No watermark, no personal names. [Layout] Full-bleed gradient sweeping from violet-blue at the top-left to bright cyan at the bottom-right, with a subtle faceted line-art pattern behind the type and a vertical hazard-stripe bar running down the extreme right edge. The left 65 percent is a left-aligned stacked headline column: three heavy headline lines that step down and to the right, with a black rounded-rectangle button plate at the bottom-left carrying a short caps phrase and a double-chevron glyph at its right. The right 35 percent is a person cut-out overlapping the striped edge. [Subject] A man in his thirties with a neatly trimmed moustache and short beard and clear-framed glasses, black suit over a black shirt with a black tie, chest-up, arms out of frame, calm direct gaze to camera. He occupies the right 35 percent of the frame and is cropped at the bottom and right edges. [Headline] Three stacked lines in ultra-heavy uppercase sans with a thick white fill and a heavy black outline, stepping down and to the right: MOBILE on the first line, APP on the second, DEVELOPER on the third - each line roughly the same width so the block reads as a rectangle. Bottom-left, on a solid black rounded-rectangle plate: ORDER NOW in bold uppercase sans, white, followed by a small white double-chevron mark at the right cap. [Badges] None. No trust seals, ratings, platform marks or store badges appear on the cover. [Mood] Palette of violet-blue, electric cyan, black and white. Bold, energetic and graphic; the heavy outlined white headline on the blue-teal gradient is maximally legible at thumbnail size.