Both Shiki and Shanks are Lion themed too, this would make sense. Shiki the hononary yonko or former one officially.
Eiichiro Oda has identified the lion as the animal spirit representing Shanks from One Piece, often depicted with red hair to match his persona.
This connection is visually realized in the Figuarts ZERO Artist Special Shanks as Lion figure designed by Toshio Asakuma. The lion symbolizes his regal and fierce nature, often compared to a "Sea Emperor".
Animal Representation: In special collaborations, Shanks is portrayed as a lion, sometimes to represent his power or in artistic, thematic mini-stories.
Symbolism: Similar to his epithet "Red-Haired," the lion representation reinforces his status as one of the Four Emperors, often described as a regal, prideful, and powerful beast.
Merchandise: The Figuarts ZERO Artist Special figure series features popular One Piece characters reimagined as animals by artist Toshio Asakuma, with Shanks as a lion.