On the link light rail from SeaTac airport to downtown Seattle I saw this intriguing profile, whose delicate structure and hair coverage appeared to be a young girl but emerged to be a lady of at least middle age when she turned her head to disembark the train.
I did not try to draw her on spot because I did not know when she was going to move. I should sketch as much as I could on spot in the future to help recover my photographic memory.