Frank J. Wilstach, comp. A Dictionary of Similes. 1916.

Perfect

Perfect as an astronomical chart.
—Anonymous

Perfect as the dew-bead.
—George Eliot

A poem round and perfect as a star.
—Alexander Smith

Perfect as a flame
That springs and spreads, till each glad limb became
A note of rapture in the tune of life.
—Algernon Charles Swinburne