1. A system, comprising: a processing resource; and a memory resource storing machine readable instructions to cause the processing resource to: receive, via a receiver engine, a plurality of pictures of a three-dimensional (3D) object from a scanner; generate, via a model engine, a 3D model of the 3D object by aligning the plurality of pictures of the 3D object; analyze, via an analysis engine, the 3D model for a volume, a shape, and a color of the 3D object to generate a scan recommendation, wherein the scan recommendation includes a recommendation to set adjustable scan parameters in preparation for a full 3D scan of the 3D object; and display, via a display engine, information relating to the scan recommendation based on the volume, the shape, and the color analysis of the 3D model of the 3D object.