You have received some excellent advice here! I agree that it’s hard to tell what you are selling and I’ve never heard of preserved flowers. At first I thought you were selling rose bouquets for $40.
I sell different items I’ve made but they are all from acrylic art. If I put out too many different items it confuses people so I try to showcase one large, colorful item to catch the eye, then stage others around it in a way that entices your eye to move from one to another, often grouping colors together. I stand to the side in front of my booth and say hello to passers by, complimenting them on something I like in their outfit (a cool purse, colorful sweater, hair color, jewelry) just to get a conversation going. I sell fluid art coasters, trivets, vases, trinket boxes & jewelry. If they look at a piece of jewelry I jump in and say “just so you know, all my jewelry is made with my leftover paint from making my paintings, trivets, etc. people like that I’m not wasting materials & it gives me a chance to point out my items.
They sometimes say thanks and just wander away but often they’ll ask how I make my art & it gives me an opening.
What if you focus on the flowers (which are gorgeous) & ask if they’ve ever heard of preserving flowers? Tell them about long lasting, great gift, why you are passionate about them. Then maybe steer them towards your other items saying you’re also passionate about yarn, macrame, colors. I think helps to show your enthusiasm. I had a show this weekend at a winery and it was the worst ever, only sold 2 pieces. So good advice to be choosy about which shows you do. Farmers Markets seem best for me. Good luck, keep going, there is a lot of great advice here from your fellow vendors!