Exodus 20:4 Thou shalt not make unto thee any graven image, or any likeness of any thing that is in heaven above, or that is in the earth beneath, or that is in the water under the earth.
In those days artists did not sign their work as it was done for the glory of God, to sign it would have been seen as an act of sinful vanity.
Following rituals in the worship of God is not sinful.
Grace
clarity and detail
Grace
Saying "Oh my God" is not sinful if there are not sinful thoughts in your heart when you say it. The key words are "in vain".
No, God is perfect and we (humans) are sinful
Because they were commissioned and paid to do so.
God is the creater,protector,omnipotent,omnipresent.
if you assume god exists then the answer depends on your definition of god.
Supposedly, Adam is the more sinful one, because he bit the apple and god said not to do that.
BACCO