area circle design heart line orange pattern red squares symmetry yellow background circles ellipses graphic lines ovals rings texture abstract art canvas experimental fantasy paint painting pastel rough waves filigree radiate ripples shafts bags decoration flowers hang restaurant roses shop water window blue clear ripples light ocean red sea wavy airport Asia china city green Hong Kong pollution streets taxi transportation waiting color colour curves illustration kaleidoscope pink surface climb climbing construction dynamic jump kindergarden kindergarten leisure net nets patterns perspective play playground rope sports string strings twine web