Complex sentence: Morten Ryelund later became a full member of the Tolkien Ensemble and the ensemble was granted permission by HM Queen Margrethe II of Denmark to use her illustrations on the CD cover.
Split into simpler sentences: Morten Ryelund later became a full member of the Tolkien Ensemble. And the ensemble was granted permission by HM Queen Margrethe II of Denmark to use her illustrations on the CD cover.