A large horizontal watercolor of considerable warmth and energy — a companion to the green (753) and red (754) creature fields, this work's dominant register is yellow-gold, with teal and blue as the cool counterpoints. The yellow ground washes create an atmosphere of warm light within which multiple creature forms move and exist.
The most prominent creature at center left is particularly well-described: a yellow-outlined form with a visible head, eye, and whisker marks — half fish, half cat, all Sidney's invention. Its yellow body merges with the yellow ground in a visual pun: the creature is made of the same color as the world it inhabits, and only its outline and its eye distinguish it from that world.
At center, a large blue-gray atmospheric form — the most abstract element in the composition — provides the tonal counterbalance to the warm yellow. Within and around this cool zone, smaller creatures and marks scatter: dark outlines, creature appendages, color accents.
At lower right, a small dark form with fine radiating marks — a spider or sea urchin — is the most precisely rendered element, its individual marks visible at normal viewing distance. This small-scale precision within the larger loose composition is characteristic of Sidney's approach: always at least one thing that required patience and close attention.
The three companion color-field works — green, red, yellow — could together form a remarkable triptych in the book. Three chromatic worlds, three approaches to the same formal question.