Yes, belMarduck. But what insearchof has described isn't trompe de l'oeil, is it?
Trompe de l'oeil has nothing behind it.
This jewellery box has a framed painting which is actually a framed painting. It's not trompe de l'oeil.

Plu, I think trompe-l’œil fits quite well. Anu’s definition did not include a common use of trompe-l’œil, which is something created to look something like else – like the fern I described in my post in Weekly Themes. The pot, which is actually a speaker, is a trompe-l’œil, because it fools the eye into thinking it is a regular pot.

Trompe-l’œil means to mislead the eye. Insearch is making a jewellery box that fools the eye into believing that it is a painting.

Do you see what I mean?