This was my entry for another contest, the Mobility Unlimited Challenge, 2018. The feedback I received was:
The assessors liked your idea, as any device that can overcome obstacles is a great idea. The fact that you hope to use rolling rubber spheres on the legs makes it really innovative.
Further development from my side was needed if I wanted to partecipate to the final stages of the contest, and being my entry self-funded, I did not have the resources to do this. Thus, I made the project open source and available here: https://hackaday.io/project/131663-awad-advanced-walking-assistive-device