Is there a reason you only tested up to aperture 5.6? How would you describe the quality of bokeh between these lenses?
If you're starting with a lens kit you can go anywhere! Personally I shoot on all vintage lenses. They're affordable and produce great varying aesthetics. Really good if you want to experiment and get a handle on manual focus. You can build up some serious skills, and your friends will be jealous that you can build a 5-10 lens kit with the same money you can buy just one superb cinema lens. I shoot on the Canon 7D, but most lenses can be adapted for any camera these days. Go forth and conquer!
I agree with the statements made by the folks above. If you are to direct the film, spend more time communicating your ideas to your team, and get them excited about it! If you can get your team to love your ideas then they will work synergistically and maybe come up with things that are better than the original idea! Not saying you don't have a good idea to start, but film is collaborative. There's no way around that.
Thank you for posting this. We need more women working on film sets. This makes me really happy.