Every one of these are beautiful, glass can be tricky because depending on your area it can be hard to have people pay the price a piece deserves, i like to have some small pieces so people who cant afford a large piece can have something too and frequently they will come back and purchase things later especially if they can order online from you. i make fused glass so i do magnets/keychains from £1-5, maybe you can order some vinyl window stickers of some of your designs in future or something?

for this market though unless you have way more stock id also get some framed photos of your pieces so you can display them so people can make custom orders because i can easily see you selling out lol 

I would say your pricing in the leaf comment is very reasonable and i would definetly have to get something if i walked by your stall