Art?

We have some very special friends, and we've been staying with them for a few days. This is the "picture" that hangs in "our" room.

Now what makes me smile even more is the fact that these friends of ours are actually professional portrait photographers of quite some fame. They also have great taste in artwork as there are examples dotted around the house.

So, why not fill the frame? I'm told it's because a decision hasn't been made as to what to put in it yet. Actually, I like the empty frame as it is.