The sky gets a wash of lighter blue near the value of the ochre/white houses, so that the houses at the horizon line seem to disappear in the sky. This brings out a stronger focal point which is concentrated in the darker upper left part of the houses.
With the palette knife and impasto gel I modulate a palm tree in front of the wall at bottom right. The dark water gets some more light reflection.
When I left my studio in the last light of the day and had a look back at the finished painting on the easel I saw all the beautiful shimmer and light reflections on the houses and in the windows - a very lively aspect.