My words would be too poor to explain or convey the message of holy images. I will limit myself to say that the above mosaic detail (which utterly caught me by surprise as I have just discovered it now) comes from Ravenna, in particular San Apollinare in Classe ", Byzantine Church, dated ca. 549.
Not only this image is superb and sublime, it is also a remarkable demonstration of the outstanding, sophisticated and wise use of colour. Brown/gold with blue...isn't this one of those combinations that are still "trendy" today?
Happy Easter everybody!