The kanji in this print says “Ginka” which is the name of a popular Japanese art magazine (similar to Art in America) published in Tokyo. "Sueño" in Spanish is "I dream," and references the horizontal self-portrait with closed eyes at the bottom of the print. The figure on horseback was taken from an old popular Japanese print.
Benibana is the yellow petals of the safflower blossom that when fermented turns red and compressed into cakes, which are used to dye products in a range from yellow to red, depending on the treatment of the cake. Geisha from Kyoto would paint their lips with Benibana and rich nobles wore kimono dyed with the flower. It is very expensive.