You look fine to me.
Lipstick with no other makeup would look far less weird than if you wore all the other makeup, but no lipstick.
I’d wear mascara and a subtle eye-liner too, but it would look fine.
My mom is 83 and is also from the “only lipstick” generation. I’ve never thought it looks odd, and she usually wears red lipstick. But only on Sundays for church.