Previously, we built a database for a single particle with a random polyhedral shape. The solution was obtained for a size range from of 10 to 300 microns at a wavelength of 0.532 microns. The particle selected was the one closest to the average in the ensemble of generated particles. In this work, a different approach to building the database is implemented: an arbitrary particle with a random shape and size is generated from the range of particle sizes attached to the database. The report examines the differences between the two approaches in building the database.