She may feel the edge of bathtub has grown a bit wide. When she sit down, also may feel water getting closer to her face than usual. Even just a bath towel will wrap around her a bit deeply.
It's just my imagination but this shot that includes multiple scenes cause me excitement. I can't wait next shot for a day!
Sorry if my poor English makes you objectionable.
I'm looking forward to this slow shrinking series. Thank you!