Nice work on the flowers :)  If that's buttercream a great job on smoothing it :)

Thank you. My husband makes the flowers. And, yes, that is buttercream. I used a tip I found here years ago, and that is to use a 4 inch sponge paint roller on the buttercream surface after it has been chilled a little. If you don't wait, the icing will curl up onto the paint roller.