My condolences to the author's loss, and my compliments to the team that created this work of art. My only suggestion would be to add hand models (and/or hand posing) of some kind. So many scenes are delightful (and poignant, in hindsight) in their presentation, the only immersion-breaker (to me) was the controller models.
This is a shining example of how effective VR can be as a story-telling medium, even in the abstract, with just little Fragments of memory presented visually and backed by vocal performance. Keeping the form of the lost one indistinct allows the rest of us also familiar with grief to share in the reminder that the good memories are what live forever, in all of us. Thank you for sharing this. Tremendous work to all involved!