AndreaMosaic is a computer program that enables the user to create your own photographic mosaics with your pictures in a very easy way. The quality and level is very good. The interface of the tool is clean and user-friendly. You can open an image through the file browser. You can also set size of variables when it comes to the mosaic and tile size. This system can handle the large collections of images and very large mosaics. Before working on this software, the user must read the guidelines of the Help centre. The settings of the tool are very easy to understand and change the language of the interface.