**Stroke-width overlay test – Tree Oil vs. Sunflowers (1888), Position 3**
This is the third transparency overlay test showing stroke alignment between the Tree Oil Painting and Van Gogh’s *Sunflowers* (1888). The selected brush cluster near the left shoulder of the vase shows matching groove depth, stroke proportions, and angle. The overlay confirms structural consistency in both paintings.

🎥 [Watch brushstroke overlay comparison – Position 3](https://www.youtube.com/watch?v=Y9TZmTjQNYI)