I like big butts and I don’t know why

Not sure what is going on in this very old postcard titled “Castles in the air”. All I see in the air is the south end of a northbound damsel.

Maybe her dimwitted suitor has brought a hammer and some clothesline instead of the ladder which one normally brings for elopements. She seems to be glad to see him despite all that, because every girl is crazy about a sharp dressed man.