My workflow was the same as usual: starting with a paper sketch, I went on to create vector images within Sketch app.
Then, I continued my work in the Rive app in order to animate the characters' movements and emotions.
I often choose the Rive app for my animated projects, because of positive experience with this application.
I especially like the Rive's State Machine. It simplifies my collaboration with the software developers because there is no need for a complicated handoff, in addition, it perfectly defines the logic that drives the transitions.