In Los moros establecidos en España, vibrant colors dominate the scene, capturing the intensity of the bullfighting event. The figures of the bullfighters are depicted in dynamic poses, showcasing their skill and bravery. The setting is an open field, emphasizing the traditional nature of this Spanish spectacle.

The background features a clear sky, enhancing the overall dramatic effect of the composition. The painting is executed in oil on canvas, a medium that allows for rich color and texture. Goya's brushwork is evident in the details of the bull and the figures, creating a sense of movement and energy. The composition is carefully arranged to draw the viewer's eye towards the action in the foreground.

The size of the painting, approximately 150 x 200 cm, adds to its imposing presence. Francisco de Goya was a prominent Spanish painter known for his critical view of society and politics. This work reflects his interest in Spanish culture and traditions, particularly the controversial practice of bullfighting. An interesting fact about this painting is that it illustrates the blend of Moorish influences in Spanish culture, as indicated by the title.

Goya's ability to capture the raw emotion of the scene marks this work as a significant piece in his oeuvre.