The trouble is that I am not able to refer to a certain site or something like that. As I love to paint, I gathered some of the earlychristian pictures, in order to paint them (on a real human scale) on my walls.

That I did, and it looked great, but this is over 4 years ago, so I do not know the exact picture, I just saw it once and reminded the image, as I thought that it was strange seeing the horn toghether with Mary.

I agree to your thinking! I can really imagine that nor Mary nor Jesus would have loved to be seen like a god or godess, but hey, I did not paint it, I just saw the immage once, and remembered it when I was reading this all!