Thanks that's helpful. Currently the title and description are not ideal for this kind of filtering. We'd need all the images captioned and classes/categories extracting from the captions. Captioning the set is something that's planned, I'm building https://github.com/bigdata-pw/florence-tool for that purpose. Another (very exciting) project is my priority right now but I will aim to get an initial version of this UI out soon focusing on image datasets like Flickr with a gallery type view for quick review and selection, plus filtering options, however as mentioned the usefulness of text based filtering will be limited until captions/classes are available, still it will be useful to filter on available image resolutions, view count (popularity) etc.
For reference the image sizes (url_n, url_w, url_m etc.) are documented here https://www.flickr.com/services/api/misc.urls.html