Thanks for posting!! Oddly shaped windows can be very tricky!!
I have DIY-ed two different window solutions in OMG We’re Coming Over that could be helpful for you!! One is the window film that we used in Lilly Singh’s office. The benefit to this film is that you can take the blinds off and let light in through the window without having to worry about anyone peeking through!
The other DIY, which you could actually pair with the window film, is the Mosaic Arched Window Frame I made with Meghan Rienks!! This project is great for uniquely shaped windows because you’re creating your own window frame instead of needing to search all over for one that fits your needs (if it even exists!)
I hope these ideas can work or inspire you for your window!