Hallo, this is just my assignment.

Curved Slider controlling lamp brightness. Designs taken from: https://www.sketchappsources.com/free-source/3592-smart-lamp-view-sketch-freebie-resource.html

Citrix Tech Fair entry demonstrating concepts for Secure Mail.

A simple animated Flowchart. Click on each tab and the arrows when zoomed in to transition to the next one. Design credited to: https://www.sketchappsources.com/free-source/3636-entity-relationship-model-erd-diagram-library-sketch-frebie-resource.html

A basic mockup of a sign-up/sign in screens along with a 2-way authentication of a uniquely generated code each time.