Discussion after the proposal of a 3D rendering of the Caesar's bust of Leiden, published on 22 June 2018 by the web site of the National Museum of Antiquities (Rijksmuseum van Oudheden). For this rendering, it seems that some data from Tusculum bust had been used too. Here we consider only the Tusculum bust and give some 3D rendering, using a software developed by Jackson, Bulat, Argyriou and Tzimiropoulos at the University of Nottingham and Kingston University. This software is giving a 3D image from a single 2D picture.