an open cabinet, painted inside with ultramarine blue and a drawing on the wall as trompe-l'oeil; the ultramarine looks like a cloud in the cupboard, so it is not clear whether it is closed or not.
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an open cabinet, painted inside with ultramarine blue and a drawing on the wall as trompe-l'oeil; the ultramarine looks like a cloud in the cupboard, so it is not clear whether it is closed or not.