This The Big Bang Theory screencap contains
portrait, headshot, and closeup.
There might also be
cocktail dress, sheath, well dressed person, suit, pants suit, pantsuit, hip boot, and thigh boot.
Sheldon mentioning Penny in the series finale of "Young Sheldon" doesn't automatically imply Leonard's demise in The Big Bang Theory. Speculations about Leonard's death arose from a casual remark, but there are numerous plausible explanations.