Typographic poster hand drawing in the form of quotes and phrases to raise morale and good mood is written on the black Board with blue spray ink with a blue frame. Vector 印刷海报手绘图在报价和短语的形式，以鼓舞士气和好心情写在黑板上与蓝色喷雾墨水与蓝色框架。矢量插图