I like your concept, I think the tequila bottles are cute. The first one looks best since it has some contrast and a couple of colors to add interest. However, I would splurge a little and get real flowers. For 8 tables you only need 2 dozen flowers. (3 each vase) Always use odd numbers in design...3 or 5..... you could easily get gerber daisys or roses and shouldn't be too much money for 2 dozen? I would use real rose petals too...again not that much money for 8 tables and will add a lot to your décor. Good luck!