So I'm lost if it's a variation or not, and if it is a variation, of what original model. I really hope we can start a discussion from this case in order to learn more about such a common word in origami like "variation". I looked for a definition of the word in relation to origami, on the web and also on Kenneway's Complete Origami, but couldn't find any.
Maybe the raw definition of variation can be considered as applied to Origami.
https://en.oxforddictionaries.com/definition/variation Perhaps this will provide some insight as related to copyright law. https://en.wikipedia.org/wiki/Derivative_work ORIFUN to all, Dianne