gentle summer sunrise over the old town on the vltava river in prague, czech republic. watercolor sketch.

air art bridge canvas castle cathedral charles city cityscape cloud clouds czech day digital early europe gentle gradchany graphics historic illustration landmark landscape letter medieval morning natural old over overlooking paintbrush painting paintings paper pencil postcard prague praha reflection republic river scenic sepia sightseeing sketch sky summer sunrise texture the tourism tourist town travel unesco urban vintage vitus vltava water watercolor world