Placement: [profile / header / single-photo post / multi-image post]

Purpose and subject: [what viewers should understand]

Canvas: [width × height in pixels] | Ratio: [width:height]

Requirement or design choice: [official specification or selected example canvas]

Source quality: [original resolution and crop] | Export: [format and actual file size]

Essential details: [what must remain visible] | Image description: [useful visual meaning]

Preview checks: [narrow screen, full attachment set and actual upload route]

Reviewer and date: [name/date] | Final file: [filename]