That finish looks good. It seems like you have some experience with oil finishes. I've done a bit of research on all the different types of finishes, oils and varnishes and their blends. And I have to say I wish producers wouldn't make it so confusing for people. Most oil based finishes are so similar you almost couldnt tell difference when using them. They have just marketed them under so many names and brands we all are led to believe there are so many choices and considerations to make, when there aren't. Anyway, I'll get off my soap box, you saying you used 'teak oil' just reminded me of that.
Anyway, I personally wouldnt put a clear coat over the oil. A well aplied oil finish is not only gorgeous, but plenty durable for most applications, unless you plan on dragging the bow behind the truck or leaving it in the lake that is.