"Portrait de M. Félix Fénéon en 1890" is an oil painting created by the French artist, Paul Signac, in 1890. The painting is a portrait of Félix Fénéon, a French art critic and collector, who was a close friend of Signac. The portrait is executed in Signac's unique style, characterized by loose brushwork and the use of vibrant, contrasting colors. The background of the painting is a flat, solid color, allowing the focus to be on Fénéon's face and clothing. Fénéon is depicted with a serious expression, wearing a dark suit and a bow tie. The brushwork is loose and expressive, capturing the sitter's character and personality. The use of bright, bold colors, particularly in the clothing, adds to the lively atmosphere of the portrait. Overall, "Portrait de M. Félix Fénéon en 1890" is a striking example of Signac's Post-Impressionist style, showcasing his skill as a portraitist and his innovative approach to color and form.