I'm still looking. I might be able to agree on that black blob being her trousers, but that other object that appears to be yellow, that's now too far away to be part of her body. However, it still looks like Yamamoto is holding her hand...but what seems odd, is IF that black blob isn't her trousers, then her face has fallen forward into the water, and her lifevest isn't on properly. It's also possible that the dark blob we think might be her trousers isn't the same shiny black 'thing' that appears out of no-where. There's still part of that film missing imo.
That entire scene needs to be filmed again...