A striking modernist oil painting by Leon Underwood, featuring a celestial figure in warm tones set against a deep, swirling blue cosmic background.

Leon Underwood was a polymath of the British art scene, known for his work in sculpture, painting, and printmaking. This composition, titled Host of the 4th Dimension (Red Angel), reflects his interest in the intersection of spiritual themes and modernist abstraction. The work depicts a central, luminous figure rendered in warm, terracotta tones, set against a swirling, deep blue background that suggests a cosmic or ethereal space. The figure is positioned with arms outstretched, evoking traditional iconography of celestial beings, yet the treatment of the form is distinctly modern. Underwood employs a rhythmic, flowing application of paint that creates a sense of movement, as if the figure is suspended within a non-Euclidean geometry. The contrast between the warm, earthy palette of the angel and the cool, dark blues of the surrounding void creates a visual tension. This piece demonstrates the artist's preoccupation with the unseen forces of the universe, a theme he explored throughout his career following his experiences in the First World War. Underwood was a significant figure in the development of British modernism, teaching artists such as Henry Moore and Eileen Agar. His work often sought to reconcile primitive influences with contemporary concerns. In this painting, the simplified, robust anatomy of the figure draws upon his study of non-Western sculpture, while the overall composition leans into the metaphysical interests prevalent in the early twentieth century. The painting remains a curious example of his ability to blend figurative tradition with abstract concepts of space and time, offering a glimpse into the intellectual climate of the interwar period in London.