Removed unnecessary thunk that only called (download-file) and replaced it with... just (download-file)...
Put regex patterns in lets and renamed them for space conservation, also condensed album-path build to cleaner define statement.
Condensed main function: Consolidated the two (let)s and used extract-functions in the call to (download-images) instead. Also removed the weird roundabout logic for (get-author-name). It returns the empty string if it can't find the author name now instead.