We skipped lo-fi prototyping to better optimize our time. Also since Venmo already has a distinguished and thought out design system, we felt that we were able go off on it.
We made two different prototypes in order to see which one was the most effective and user-friendly UI for our users. Prototype A stuck more closely with the Venmo design whereas Prototype B had a more profile-based layout, such as Instagram, for the group transactions.