I didn't read what the others said so as not to be swayed one way or the other.
The second one is the pick of the litter for me.
The second one is the most mysterious and also the one that has the best exposure and just the perfect amount of grain. I'm more curious about it-much more so than the other two.
There's just enough in the frame to make me wonder more about it, and leads me to believe a story is about to unfold.
The first one I also like just because I like bathtub shots but that's not a very strong reason to help you.
The third one is too distracting by its abstract forms...for me it's just kinda a scramble of shapes that don't take me anywhere.
Good luck! Let us know how it goes!!!!