Portray a vivid and descriptive scene based on the biblical verse Exodus 38:2. The image should showcase an altar with four horns, each attached to a corner, overlaid lavishly with brass. The color and tone of brass, its luminosity, and how it catches the light should be the focus of the artwork. Make sure to give the scene a digitally created feel, playing with contrasts, sharp lines and angularity to mimic the characteristics of digital art.