Two golden koi fish, in the vector illustration style, on a dark background, with lines and a printmaking effect, using a brown and black gradient color scheme, on a patterned surface, in the ink painting style, referencing traditional Chinese culture. Auspicious clouds are in the middle of the picture, with a symmetrical composition. The overall atmosphere is peaceful and mysterious, in the style of traditional Chinese ink painting. --ar 1:2  --s 250