It's no big deal if you see something else in a painting

Perched atop the mantelpiece are two candlesticks and a clock.Behind these objects is a large mirror that reveals an empty interior and only a partial reflection of the objects before it.The juxtaposition of the objects surrounding the moving train raises numerous questions for which there seem to be no apparent answers.Did I summarize the painting accurately or leave any details out?It's no big deal if you see something else in a painting,but what if we're both seasoned cops?I call you for back-up.You show up only to realize the two bank robbing ninjas I'd mentioned were actually six bank robbing ninjas with lasers.