A serpentine member of the Legion of Super-Heroes who appeared during the first reboot of DC's 30th-century universe, now known as Earth-247. She has the power to project intensely realistic illusions and is an alternate version of Projectra (Sensor Girl) from main Legion continuity.
Jeka Wynzorr was the princess of the planet Orando, a world populated by a ruling class of large intelligent snakes and an underclass of small, raccoon-like mammals. However, she renounced her heritage to travel the galaxy, using her illusion-casting powers to disguise herself as a humanoid to avoid attention.
The BG is from and I wish I knew the name of the author for the deserved credit.
I thought it was a good match for Sensor's color palette.