At Spade and Archer Design Agency, we love to hang a series in complicated rooms with paneling.
A “series” is different pieces of artwork all in the same frame. When selecting the series we usually pick something that is at least 50% of the width of the paneling but no more than 75% of the width. We generally hang one piece centered in the paneling at 57 inches above the finished floor. As you can see each of the panels in this picture are different sizes. However, our consistent artwork give them the look of being more consistent than not.