Wow, your prototypes look great! I love how you have incorporated information gathered about user preferences and needs. I think that design C is the most compelling, followed by design A. From first glance of design C, I can see whether other users have interacted with the digital object. I think having the object title at the top makes it more prominent, and having a brief description of the larger collection gives context and draws users to some of the topics covered by that particular collection. Thank you for sharing -- looking forward to seeing the finished look!