I used a branch on the table number (names to follow soon).  Another idea for the seating card is to include a detail from your invitation tree with a bit of pattern.

I used a dull silver which combined well with the rich chocolate brown.  I was surprised to see the candlelight feel still come to life with the cooler color palette – stunning!

I used a combination of soft gold, shimmering tan and dusty blues here.  The tree was illustrated by hand with brush and ink for a soft, whimsical look!