I'm actually starting to get into windowpanes as the spacing can accommodate all but the largest tie/shirt patterns. Just got one, a nice fuzzy triple forest green with white, light blue and pink windowpane. More subdued than it sounds.
I know, it's ambiguous. All I can say is: the suit fabric and tie (like all neats) look formai, but the square looks playful (in a good way). Burgundy ties always are tough for me, personally, as far as choosing a square. Perhaps a muted green?