Full art:

Wings:

Top: “Transparent-looking wings”
Bottom: “Steel wings”

Design:

Top right: “About half of each blade is wearing the cloths from Sauravis”
Bottom right: “Taking the design of Skull Guardian as the base, components from ‘Saffira’ and ‘Sauravis’ were also introduced”
Top left: “The design of ‘Saffira, Dragon Queen of the Voiceless Voice”s wings and ornaments were turned into a[n equipment] frame”
Bottom left: “Its characteristic blades have been updated”

Source.