I like the compositions and those skipping stones stacked like that aesthetically interesting to me. The images, though, seem underexposed and tonally very flat. There is no white in them and not really any deep, pure black either.
Also, the horizon line in the second one is very distracting to me.
Well, it could be the flat tonal range, which could have come from the B&W conversion, and not underexposure, but the absence of any highlights generally says that an image is underexposed. The pics aren't showing up now, so I'm having to rely on my memory rather than look at them again to try to answer your question.