1st commandment... Thou shalt not take unto thyself any graven image..
It has been the reason I have been one for relating God by looks to anything in the world...
King James Bible
No man hath seen God at any time; the only begotten Son, which is in the bosom of the Father, he hath declared him.
After Christ, it is clear even then no one had seen God at any time...
But Jesus made God known to us.
I cannot see the need for a picture or image in our mind as God is always present...