Illustration plays an essential role in UI/UX design. As a designer, you don’t have to draw. However, it is crucial to know when to use illustrations for the user flow.
So when is the best moment to use an illustration in my design?
Let’s check it out.
1. When your user achieves something, enhance the hero moment with illustrations

Everyone wants to be encouraged — so do your users. When your user completes a step, even just a small one, congratulate them on the achievement. To celebrate these moments, a graphic with a positive vibe will bring joy to them.
Here is an example from the OmaPosti app. The graphic with confetti celebrates the moment of the item’s arrival with the users.