As is it looks like someone took ketchup, mixed it with a lot of water, flung a tiny tad bit around a bathtub, ran the water, then hopped in.... Which is exactly what happened, I'm guessing.
More spatters. Deeper red, possibly a tad bit thicker fluid. Lose the vignetting. Make your shots look more deliberate, and less like high quality snapshots. In every pictures there is SOMETHING that is compositionally distracting. In #1 it's an odd angle of both the camera and lighting, and the odd reflections in the upper left. In #2 it's the thing in the bathtub with her, on the edge in the back corner, and the spout merging with her head. #3, another odd camera angle with little deliberation, the thing in the upper left, and the spout/shadow of the spout just barely in the bottom left of the frame.