If they are directly next to each other, they will have trouble sensing different amounts of light. (sciencebuddies.org)
Moses also works with convex canvases, which utilize an outward curve, causing his pearlescent colors to shift and change as different amounts of light hit the surface at any given point. (artspace.com)
They will provide plenty of privacy when closed and give you the flexibility of allowing different amounts of light to come through the slats. (theshadestore.com)