Sunflower table arrangements--love the use of mason jars, sticks to the yellow/ Blue color theme. I'd put more flowers in each jar, and Get rid of the marbles. Perhaps wrap each jar in Burlap.
Peacock bouquet, I love this (and the colors would be perfect!) Peacock bouquet, I love this (and the colors would be perfect!) Peacock bouquet, I love this (and the colors would be perfect!
Wedding Cake: Joyful Blue Wedding Cakes for Happy Couple in Winter and Destination Wedding, Uniquely Stunning Half White Half Blue Wedding Cake with Beautiful Silver Hearts Topper and Awesome Artistic Divider
Jenna's Orchids- Blue dendrobium orchids atop a fondant covered cake wrapped with teal ribbons of varying widths. I'd do it with coral or purple orchids.