"ENDING EXPLAINED" は、SF映画風のYouTube動画サムネイルです。銀白色の太い縦長の大文字が左に積まれ、隣のアップの宇宙飛行士ヘルメットのバイザーには赤い惑星と岩場に立つ宇宙服の人物が映っています。映画タイトルの言葉、動画の長さ、バイザーの場面を差し替えて、別の解説動画用に作り直せます。

A cinematic YouTube thumbnail, 16:9 widescreen, full-bleed, sci-fi movie recap key art. RIGHT SIDE, about 55% of the frame: an extreme close-up of an astronaut helmet in three-quarter view, white suit fabric and a metal neck ring at the edge, the large curved gold-tinted visor filling the shot. In the visor reflection a vast rust-red planet with swirling dust bands and a thin crescent of sunlit edge hangs in black space, with a tiny reflected figure and a scratched, dust-dusted glass surface. A strong warm amber backlight rim-lights the helmet's edge from behind through drifting haze and dust, with soft volumetric shafts, a thin horizontal anamorphic flare streak across the light source and soft halation on highlights. Colour grade: deep rich blacks, teal-cold shadows against warm amber-orange highlights, red planet as the single accent. Fine 35mm film grain, shallow depth of field, soft bokeh specks, gentle dark vignette, left side falling into dark negative space. LEFT SIDE, about 45% of the frame width: the title stacked in two lines, flush left with a generous margin, in huge geometric sans-serif capitals with near-uniform stroke weight, flat cut terminals, even mathematical letter spacing: line one "ENDING", line two "EXPLAINED", both the same width, each line about 40% of frame width, pale cold steel-white flat surfaces catching cool directional light evenly from the upper right, crisp edges, a faint amber rim-light on the right edges of the letters and a subtle dark shadow separating them from the background, extremely legible at small size. The words do not overlap the helmet. BOTTOM-RIGHT CORNER: a small rounded-rectangle duration badge in near-black with 85% opacity, the text "21:47" in clean white geometric sans-serif numerals, sitting close to the corner edge with a small margin. No other text.