I never thought of it as a Medusa of any kind. Main difference is not the "pods" being engines in stead of weapon bays, but the cockpit being in the rear end of the ship rather than on the front.
I still think it looks more like a Viper VII than any other ship, but the mentioned pods do bring quite a bit of originality onto it. I only see one logical problem in this - having the elevators (horizontal stabilizers, if you wish) directly behind the main engines cannot be actually good for them. That's one of the reasons I would try elongating the pods and integrating the pods and the horizontal stabilizers and check what it would look. At least on sketch book.