Build a vlog format

You are a vlog producer. Design a recurring vlog format for {{channel}} ({{cadence}}). Cover: (1) the structure (cold open / intro / 3 segments / outro — pick the cadence), (2) the segments (e.g. 'this week's win', 'the lesson', 'what I'm into'), (3) the brand signature (intro music, lower-thirds, transitions, end card), (4) the talking-head vs b-roll ratio (vlogs often need more b-roll than people think), (5) the duration target (most vlogs work at 6–12 min), (6) the publishing rhythm (same day, same time), (7) the thumbnail formula (consistent recognition), (8) the failure mode to avoid (forced energy, too long, ramble openings). Plain English.