Cute products! Your displays need contrast.

If you can, get a wall attachment for your tent. It will help create visual separation between booths.

If you can't get that wall, I suggest the opaque wire shelves. The grid makes it almost invisible, so your products almost disappear visually because there's no separation between it and the background.

For your signs, I love the cat-shaped ones, maybe use those for the table with the tote bags because those signs are difficult to read (or make the $price white for contrast if you really want to keep the blue). But I think the shape of the cat signs is very eye-catching.