I'm sorry for you issues with Zillow. We have used it a few times with good results.
You can claim your property as the owner and edit the facts on Zillow (including the pictures) to make it more factual (and attractive). The algorithm can't see pictures but it can see SF (as when we added an addition of a sunroom, converted the attic to a 4th bedroom etc.). Unfortunately in a new neighborhood, it takes a little time for sales to result with comparisons that add value. As another posted said, 'it's just an estimate' (done by a computer algorithm) so we always review our properties and make sure to update any facts that are missing or inaccurate.
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