if entry[0] =~ /\/#{dropbox_blog_dir}\/projects\/public\/([a-z\-0-9]+)\/pictures\/.+\.(?:jpg|png|gif|jpeg|svg)$/
          path = entry[0]
          project_slug = $1
          file_name = Pathname.new(path).basename.to_s
          s3_object_key = "pictures/#{project_slug}/#{file_name}"