Sfumato is an Italian term for graduations of light and shadow to produce a hazy effect. This painting is by Correggio called, Assumption of the Virgin. Inspired by Leonardo da Vinci’s spotlighting effects of illumination of sfumato, Correggio used sfumato to create a dreamlike effect in his fresco. The light at the top appears to filter down through the clouds among the shadows and figures. Although the objects are defined and recognizable, there is still an overall haze and blend across the entire image.
Sfumato is the technique of allowing tones and colors to shade gradually into one another, producing softened outlines or hazy forms. Does the second pert have a picture or something? what is a fresco? Sorry, Hope this helps
Shading is showing the objects' roundness or shape; shade is the blocking of a light source; and shadow is the variation between black and white with the darkest part at the center and the 'shadow' fades at the edges.