It is widely regarded as one of the most exquisite portraits of the Northern Renaissance. Art historian Joel Upton described the sitter as resembling "a polished pearl, almost opalescent, lying on a cushion of black velvet." The panel builds on the work of Jan van Eyck and Rogier van der Weyden, and was highly influential in the decades after its completion. Its appeal lies in part in her intriguing stare, accentuated by the slight misalignment of her eyes, while the eyebrows are faintly skewed.