Blue, purple, blue and green reflect the sunset glow.

Blue-purple (Chinese milk vetch with purple-blue flowers)

Turquoise (green rape before flowering)

Both of them are rural scenery in the south that has just entered spring.

The first part: gold, silver and white piled up.

It depicts the autumn harvest in the north.

Bottom line: Blue, purple, cyan and green reflect the sunset glow.

It depicts a promising field in southern spring.

The first four words of the upper and lower couplets are all composed of words representing colors. The upper part is similar to gold and silver, and the lower part is similar to purple and green. The ending is full of broken couplets reflecting the sunset glow, uniform!