croquis à la plume puis aquarellé
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/73318272@N00">Guy MOLL</a> from Faro, Portugal
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/guymoll/4542524429/">aquarelle: Porto et le pont Dom Luis I°</a>