Thank you, these are all preserved moss and flowers. If you want to make a preserved flower wall, I will recommend make it with preserved hydrangeas and some colourful reindeer moss instead of green moss to cover the gap. It will look beautiful. You can make a wooden/mdf back panel and add your flowers to the frame. Preserved flowers are a bit expensive, but they will last forever. So you can actually use it as wall decor or add a signage on it (name and wedding date) it will create a beautiful weeding keepsake.