Once they heard the story, they understood what I meant. A comment in particular that stood out was the one who was happy the hidden images portray His character not a face. We do not know what God looks like but we can know who He is. Jesus' characteristics and attributes show us the Image of the Invisible God.
They ended their meeting by singing an old hymn that sums it up perfectly.......... To God be the Glory, great things He hath done!