diff --git a/artist/shapes/ellipse.go b/artist/shapes/ellipse.go
index c750e6f..c30041d 100644
--- a/artist/shapes/ellipse.go
+++ b/artist/shapes/ellipse.go
@@ -68,7 +68,7 @@ func StrokeEllipse (
 		},
 		radii:  image.Pt(drawBounds.Dx() / 2, drawBounds.Dy() / 2),
 	}
-	context.center = bounds.Min.Add(context.radii)
+	context.center = drawBounds.Min.Add(context.radii)
 	context.plotEllipse()
 }
 
diff --git a/artist/shapes/rectangle.go b/artist/shapes/rectangle.go
index b52ae68..968e00c 100644
--- a/artist/shapes/rectangle.go
+++ b/artist/shapes/rectangle.go
@@ -49,7 +49,7 @@ func StrokeRectangle (
 	if insetBounds.Empty() {
 		return FillRectangle(destination, source, bounds)
 	}
-	return FillRectangleShatter(destination, source, insetBounds)
+	return FillRectangleShatter(destination, source, bounds, insetBounds)
 }
 
 // FillRectangleShatter is like FillRectangle, but it does not draw in areas