The brow of the upland overtops the square tower of the Colebrook Church. The slope is green and looped by a white road. Ascending along this road, you open a valley broad and shallow, a wide green trough of pastures and hedges merging inland into a vista of purple tints and flowing lines closing the view.(from Amy Foster by Joseph Conrad)

By “flowing lines closing the view”, does it mean when looked from this road, hedges are like flowing, purple lines forming a closed figure (probably in the Gestalt psychology sense)?

Thank you very much for your kindness and patience!