I think it would be better to add the new photos in a different post, even within the thread, for the purposes of tracking changes. Otherwise, the thread loses context.
It’s hard to have comments on a design make sense when comments are made and then photos are swapped out.
(Sorry, it’s the tech writer in me. We document changes in revisions so we can see if we’re making progress in the right or wrong direction, who is responsible and who should make the changes)
Plus, I’m not too thrilled with the new images and I think the weight is going to be a major turn-off. While I like heavy, 70 grams is a bit too much. Without a sliced apart profile picture, it’s hard to suggest where to remove weight.