Yes, all the paintings and such were/are wrong and sinful. This statement by TB just nails it for me. Look at the logic here:

It is not lawful to have pictures of Jesus Christ, because his divine nature cannot be pictured at all, and because his body, as it is now glorified, cannot be pictured as it is; and because, if it do not stir up devotion, it is in vain; if it do stir up devotion, it is a worshiping by an image or picture, and so a palpable breach of the second commandment.
Either way it is sinful!

Reformed and Always Reforming,