I used regular solid colored cardstock for the box card and the insert base. The decorative side and flap panels are handmade papers. After cutting the pieces for the flap panels, I embossed them using a Cuttlebug embossing folder. The flowers were cut with an embossing die.
Adhere the decorative panels to the box card base, then form the box and glue the tab in place. Next, position and adhere the flowers to the box card and the insert base. The insert base is glued to the inner sides of the box midway from the front and back.
Here's my finished box card with decorative panels made from handmade papers.
I've included a PDF file you can download to make your own box card.