12 Watercolor Sketches for Blue City Oman 12 Watercolor Sketches for Blue City Oman from Ferry Djohan 12 Watercolor Sketches for Blue City Oman My watercolor illustration for Blue City Oman. gLike 12 Watercolor Sketches for Blue City Oman My watercolor illustration for Blue City Oman. Architecture Concept Art Illustrator Illustration Share R 7 n Ferry Djohan 3D ARCHITECTURAL VISUALIZER Manama, Bahrain Follow Contact