Queen Tuwasta (the figure on the left) is pouring libation to the Moon goddess.
Between the two there is an inscription in hieroglyphic Luwian.
Right half of a relief from the Lion Gate of Milid/Arslantepe (7 km northeast of modern Malatya).
Neo-Hittite sculpture in traditional style, 1050-850 BC.

Luwian is an ancient language or group of languages of the Anatolian branch of the Indo-European language family. The two varieties of Luwian are named for the scripts that they were written in: Cuneiform Luwian (CLuwian) and Hieroglyphic Luwian (HLuwian). As to whether these were one language or two, there is no consensus. Luwian is closely related to Hittite.

Correspondent: J.M.Criel, Antwerpen
Sources: ‘Anadolu Uygarlıkları’ (Anatolian Civilisations) – Prof.Dr. Ekrem Akurgal.
& Website of ‘hittitemonuments.com’ .