6 identical wedges repeat around the centre, across 3 concentric rings, giving 43 separate shapes to fill. At a relaxed pace that is roughly 32 minutes of colouring.
The pattern is built inside a heart rather than stamped onto one: the motifs bend to follow the silhouette, so every shape stays whole all the way to the point.
Lines are thick and the shapes correspondingly large, which is what crayons and young hands need: a shape has to be big enough to fill without going outside the line.
Every outline is a closed loop. On paper a broken line reads as a mistake rather than a boundary; colouring digitally, a fill tool escapes through any gap and floods the page.