Does anyone have a source for this gif?

Does anyone have a source for this gif?

does anyone have a source for this?

Does anyone have the source of this video?

Does anyone have a source for this? A gym in Japan presumably

Anyone know the source for this Marsha May video?

Anyone have the source for this video?

Anyone have the source for this?

Does anyone have the source or the name of this woman?

does anyone have the source video?

does anyone have the source for this work of art?

Does anyone have a source for this or similar videos like it?