The Hanged Man is twelve, suspension; Death is thirteen, actually letting go after the suspension. A skeleton knight carries a banner, a king lies dead on the ground, a bishop pleads, a child looks at flowers, a boat moves on the distant river, and the sun rises between two towers. The picture says it plainly: endings don't check rank (the king falls too), pleading doesn't help (the bishop is no exception), and on the horizon it's a new day. Thirteen is traditionally unlucky, and tarot puts it just past the journey's centre — because without a real ending, the eight cards after it can't happen.
Where you'll recognise it: a relationship, a job, a self-image that has run its course; you know, you just haven't said so. This card is about transformation, and transformation's first step is the old thing actually dying, not carrying on under a new name.
Running well, Death is the cleanest ending there is: what needed to go went, space opened, you're lighter than before. Stuck, its problem is refusing to die — propping up what should have ended, or the reverse: treating every ending as destruction. There's a flower on the banner. This card was never the end. It's the ploughed field.