yesss
Explanation
This comic is a brief four-panel visual gag set in what appears to be a historical (Victorian or Edwardian) era. In the first panel, a man in a hat and suit looks pleased or excited. The second panel shows a woman in period-appropriate dress. The third panel reveals a note or letter that reads "Send privates" (or similar). The fourth panel shows the man's reaction to receiving this message.
The joke is a historical anachronism gag, projecting the modern phenomenon of unsolicited "send nudes" or "send pics" requests back into a period setting. The humor comes from the contrast between the formal, buttoned-up aesthetic of the Victorian/Edwardian era and the very modern, very crass behavior of soliciting intimate images. The title "yesss" captures the sender's eager, undignified excitement.
By placing this thoroughly modern social behavior in a historical context, the comic suggests that certain human impulses are timeless -- people would have done this in every era if the technology had existed. It also gets laughs from the visual absurdity of such a request being delivered via handwritten letter on fine stationery.