Interesting concept and well done. The other two images of that set are misses (and redundant) and should be dumped.
Hard to tell what the second exposure is.
Crook of the fingers cuts the model's face in two.
And this set...
This is kind of whimsical and there's a clear dynamic to it.
This one's a bit of a mess. Whereas the prior image has the multiple exposures synched by the stationary butt, the multiple exposures here have no such spatial unity.