Mara squeezes out the sponge to drain of it of any remnants of soap before she hangs it back on the hook in the stall. As she rinses out the conditioner in her hair, she pumps her face wash into her hands and lathers it into bubbles. She scrubs her face in the ice water, instantly removing any signs of sleep from her face.
I'm not convinced we need this present moment in the shower (here or anywhere else in the story). The shower still has emphasis in the past without it, so these present moments amount to you describing a girl taking a shower. Not exactly the story's most page-turning moments.