The obverse of the sheet features a watercolour polychrome copy of a self-portrait by Daniel Mytens the Elder, based on a 1630 painting. The artist carefully conveys the compositional and stylistic features of Flemish painting from the first half of the seventeenth century, focusing on the texture of the face, exquisite coloring, and Baroque chiaroscuro. The self-portrait is an example of compositional balance: the figure is depicted in a three-quarter turn, with a slight tilt of the head, which emphasises the introspective nature of the image. The face, reproduced with special attention to individual features, conveys the artist's restrained confidence and inner dignity. Polychrome watercolour allows you to accurately convey the warm, ocher-red tones of the face, along with a soft gradation of shadows. The gaze is directed slightly away from the viewer, which creates the effect of inner concentration. Particular attention is paid to the reproduction of fabrics: the collar, featuring tightly laced lace, is represented by light, almost transparent strokes that contrast with the deep tones of the dark clothing. Thanks to this, the watercolour not only maintains the portrait conformity, but also actualises the subtle baroque effects of light play on different surfaces. The artist's hair and beard are presented with slightly blurred contours, which adds softness and picturesque expressiveness to the image. This copy exemplifies a profound analytical assimilation of the traditions of Flemish self-portrait painting, where individual interpretation is combined with the Baroque aesthetics of restrained drama and refined simplicity.