I know you are all very well read, that is why I won't patronise you by presuming you have no idea what the reference to the creepy old attic painting is about.
However, as we both know, your friends or relatives are not as clever as you, so you may need to tell them it refers to the painting kept in Dorian Grey's attic from the novel of almost the same name by Oscar Wilde.
I don't need to tell you that though, do I, because you are not an idiot, are you?
Amusing greetings card printed on 125mmx175mm 300gsm matt card. Professionally printed, comes with white envelope in cellophane wrapper. Shipped in hard envelope.