Chinese paintings traditionally use patterns, designs, dots and lines rather than realistic pictures. They often represent nature and use only a few colors like black and white. Different styles emerged over time, from early artists representing the world around them during 403-221 BC to paintings of humans during the Han and Tang dynasties from 202 BC to 906 AD. Chinese paintings differ from Western paintings in their use of fewer colors, abstract representations rather than realism, and an emphasis on lines and dots over color.