My current plan is to start with a plywood sheet and cut out my frame to use as the backing for the arch (similar to how @jessiegirlhome did with her DIY headboard). This will serve to support the wood ball halves which I’ll use to cover the plywood like @caseymason_’s mirror above. I plan to paint the balls a pretty green tone and add round reed or willow arches in between (as you can maybe comprehend from my silly scribble). I may have to adjust plans once I get a feel for the sturdiness of this design, but I’m eager to get started! The supplies should be arriving in the next couple days!