Skyfall made prominent use of paintings, especially paintings of ships, to visualize James Bond's and MI6's state, as previosly discussed.
Given this, I couldn't help but notice that its successor Spectre, as made by the same director, again seemed to rather prominently feature a huge painting of a shipping scenery behind M when he was sitting alone in a restaurant, before being visited by Eve and Q with news about Bond.
So yet again I ought to ask, what painting was that in this scene with M in the restaurant and did it have any further significance? Did it even play into the same symbolism that the previous movie seemed to impose on those ship paintings?
(Thanks to this blog post the scene was apparently filmed in Rules Restaurant in Covent Garden, which might speak for the fact that the painting (if the same one) could be more of a natural consequence of the location rather than a deliberate choice (which might still have influenced the choice for the filming location in the first place, though).