i like the 2 rectangle tables and 1 round table look for the wedding party table. You could even set the rectangle tables at an angle. Or you could just have like long tables and then a different color where the bride and groom sit.
Pretty backdrop for the wedding party table. Tulle and twinkle lights make beautiful wedding decor. Maybe do a solid white tulle with lights for the whole barn and this accent in red behind the head tables?
S'mores bar - roast your own s'mores. What an awesome wedding reception idea! Would be so much fun for kids- although wouldn't it be more fun (if you have a small wedding) to have a Campfire outside and roast s'mores