Quicksight heatmap infographic with Sankey pipeline example

Data visualization infographic titled "Tree Map Example" using a SANKEY FLOW as the dominant visual element to show progress through a pipeline. Create a large central left-to-right flow diagram with clear staged nodes and proportional stream widths, rendered with sharp labels, connector annotations, and small baseline tick references in English. Use realistic illustrative numbers only, explicitly marked as illustrative. Example pipeline structure: Stage 1 "Total Items" = 1,000, flowing to Stage 2 branches "Grouped A" = 420, "Grouped B" = 310, "Grouped C" = 270; then merge into Stage 3 "Reviewed" = 760, Stage 4 split into "Approved" = 540 and "Needs Revision" = 220; final Stage 5 "Completed" = 480 and "Dropped" = 60. Include small side mini-legend noting "Illustrative flow values". Add subtle reference scale markers and node value labels such as "0", "200", "400", "600", "800", "1,000" with no misleading truncation or scale manipulation. 

Add 4 key insight callouts around the chart, each with a small icon and English text: 1) headline number "1,000" with interpretation "Initial illustrative volume enters the pipeline" and a small inbox icon; 2) headline number "76%" with interpretation "Most items reach the review stage" and a checkpoint icon; 3) headline number "540" with interpretation "Approved branch is the largest positive outcome" and a checkmark badge icon; 4) headline number "48%" with interpretation "Nearly half of the starting volume reaches completion" and a flag icon. 

Include compact annotations showing progress emphasis, hand-drawn arrows, circles, underlines, margin notes, and sketchnote-style captions such as "Main flow", "Bottleneck", and "Final outcome" in English. Since the topic is "Tree Map Example" but the selected archetype is a Sankey pipeline, frame it as an explanatory conceptual example of hierarchical grouping transformed into progress flow. Add a tiny contextual note: "Conceptual example inspired by grouped categories". 

Place a small SOURCE / DATA-NOTE strip along the bottom reading: "Data note: Illustrative example only. Values are plausible mock figures for layout demonstration, not sourced data." 

Visual style: hand-annotated sketchnote, high-contrast red & green palette with off-white paper background, black ink outlines, red for losses / dropped paths, green for approved / completed paths, neutral gray for intermediate nodes, energetic editorial mood, slightly imperfect marker strokes but still highly legible. Use editorial data journalism illustration, FT / Bloomberg-grade chart aesthetics, vector-clean infographic layout. 

All text MUST be written in English (array). Every heading, label, caption, legend and metric name in the image must be in English — not English. Spell each English word correctly using English characters and diacritics. Numbers stay as digits, no fake authoritative sources cited, no watermarks Numbers labeled "illustrative" unless the user supplied specific sourced data. No fake authoritative sources cited (do not invent "Source: Reuters 2025" — use "Illustrative example" instead). No misleading axis truncation or scale manipulation.