Complex sentence: Over the fountain is a carving of the face of Neptune and the main panels contained statues of Bacchus and Pan however these two statues were damaged when they fell into the fountain and are currently awaiting restoration.
Split into simpler sentences: Over the fountain is a carving of the face of Neptune and the main panels contained statues of Bacchus and Pan. However, these two statues were damaged when they fell into the fountain and are currently awaiting restoration.