Those are some really vivid concepts.
And you're right, clashing with user's ideas that they've created themselves is always a problem when removing ambiguity. The initial god concepts literally focused only on their altars in order to give players a chance to keep their own imaginings, but the space proved too large to fill with just an altar image, so Lurk improvised

I'm going to send him a link to your post for possible further inspiration as he works on the rest of the god portraits. Thanks!
You've given me an idea as well: To help safeguard the images that people have of the gods, we could treat the portraits as examples of art made in-world by worshippers of the gods, showing their personal interpretations and not a strict "canon" version. Something like "3rd Century oil painting depicting the Glowing Guardian, artist unknown" (with distressed effects to indicate old canvas) or "'Nail and wood, they work tirelessly' - Anonymous" for the Binlor portrait.
P.S. The Glowing Guardian was always intended as a stern bastard, difficult to please and horribly judgmental.