Abstract: A system for assessing the aesthetic compatibility of design elements. The system includes a sheet and an insert. The sheet includes a sheet surface that is substantially planar, and is configured to receive at least one design element, and a receiving region having a sheet engagement portion. The insert is dimensioned to fit within the receiving region, and includes an insert surface, and an insert engagement portion. The insert surface is substantially planar, and is configured to receive at least one design element. The insert engagement portion is configured to engage with the sheet engagement portion in a manner that removably secures the insert within the receiving region in a secured position, whereby the sheet surface substantially adjoins the insert surface.