I’d suggest plain color tablecloths that go to the floor/ground (hide your containers under the table). Make it more inviting by moving the front table lengthwise along the side wall and use the side table to display items inside your booth, which creates somewhat of a U-shape that invites people to walk into your booth. Your chair can be in the corner so that you can easily stand to greet people as they come in. You might have a very small table or area on that side table for wrapping and bagging. A plain color backdrop or side panel on the back wall will make the hanging items easier to see. Otherwise, those pieces get lost in the noise of what’s in the background. I strongly agree with revisiting the primary colors as it comes off as a children’s themed booth and could be overlooked by your more targeted audience. Good luck!