**Brushstroke width measurement – Tree Oil vs. Landscape from Saint-Rémy (1889)**
Using the Google Art Project zoom feature, brushstroke widths were measured from the sky area in Van Gogh’s *Landscape from Saint-Rémy* (1889). These values were compared to the measured stroke group from the Tree Oil Painting — notably in the vertical brush cluster on the right-side foliage. Both sets show comparable stroke lengths, rhythm, and group curvature.

📐 *Stroke-widths in both paintings range between 0.48–1.06 cm, confirming controlled similarity.*