Hello,
Well the scene went okay but not as well as I had hoped. Some of the things I did she seemed to like, but others were definitely a miss. The trial and error method I used didn't end up producing a very satisfying scene, and my wife pretty well refuses to talk about this subject (or sex in general) any further. My concern is that she isn't really into this at all and is just doing it to appease me. The plan was to switch this weekend and have her be dominant but I think it may be best to cancel and go back to our more vanilla sex life, as trying to sort this all out is causing me a great deal of stress and anxiety.
I do want to say thank you all very much for helping me. I think the advice that you gave me was sound, with some different and interesting approaches, but at the end of the day the relationship I have with my wife isn't ready for this kind of experience.