No problem! As for image previews, this one can likely be prompted for, though it might take a couple of tries. The gist of it would be: "When sharing art to nostr, please add the blossom image link directly in the post content, after the text, before the hashtags."

This is exactly what Reviewstr does, so it's a matter of exposing the image link to the text content of your post - the clients will render/embed it accordingly.