wrong order of movieverse presentation, but correct order of the order in which these were painted, here is legends scorponok from live action movie 1 or 2, which brought in this size class.
Modelled it after a certain other scorponok, I'm sure that will not need further elaboration for this crew:
(if the tail looks a bit funny, I will have to say that the tail tip got quite brittle over time and broke many times and in many places. I am surpised it survived to the end in fact, be careful with that thing)