It's a neat idea, but I don't think it's particularly useful. Natural language is an unnecessary abstraction that will not help you solve the problem, unless the problem in itself is about grasping the syntactic peculiarities of your language of choice. From your examples, it seems like it would just be a very verbose way of defining a solution to a problem in basically the same way you do in any imperative language.

Syntax should be the least of concerns, and even if it wasn't, involving the subtleties and ambiguities of english language wouldn't be the solution.

EDIT: I don't mean to say that a natural language programming language couldn't be useful, but I'm arguing that it won't be unless you can use natural language to move closer to the problem domain, rather than abstracting the solution description further.