Inkscape is a professional-quality graphic vector software for Windows, Mac OS X, and GNU / Linux. It is used by professional and amateur designers around the world to create a wide variety of graphics such as illustrations, icons, logos, diagrams, maps and web designs. Inkscape is free and open source software that uses SVG (Scalable Vector Graphic), the open standard of W3C, as its native format.
Krita is a free and open source professional digital painting program. Krita's design emphasizes creating images from scratch rather than manipulating existing images, with features similar to Corel Painter, however, it supports features such as the ability to work with both bitmap and vector illustration, among others.
Zoom is one of the most used applications to create virtual meetings. The free version allows meetings of up to 40 minutes with almost 200 participants. With Zoom you can manage your meetings by being able to disable or activate the microphones and cameras of the participants to facilitate the participation of large groups.