I've been thoroughly enjoying creating with the gorgeous Wonderful World DSP this past week. Get this paper plus a coordinating stamp set free when you place a $180 order during July/August (while stocks last.) Or choose from some of the other Saleabration freebies.
I cut the sheet of large flowers and have been making a range of cards similar to these ones. Keep it simple if you've just got a few basic supplies, or add some extra details if you have things like embossing folders and dies.
I put together a video here showing a simple version - plus some stepped up ones at the end with some extra layering.