You should maintain the things listed below when designing the 3D Prototype.
Prototype Design:
Excellent and clear description of the design and its function
The physical presentation of the model and the level of workmanship is excellent
Layout & design of each slide strongly complements talk and stimulates interest
Always clear speech, excellent eye contact, highly engaging manner.
Team Component/ Design Solution:
Team cohesion highly visible in a well-coordinated presentation and well-developed design.
Presentation is logically structured with excellent flow.
The design is highly original & innovative
The design is technically highly appropriate for the context and the brief
Physical representation of design idea (3D Model) is highly appropriate.