First attempt at a back flange for this jacket toile. Happy with how this turned out, doubly so given I couldn't find a tutorial for how to do one and had to wing it. Think I'll add a bit of length, but it depends on how I take in/out the rest of the garment during fitting (a few last stitches to make, some basic-cheap interfacing to give approximate shape for fitting, etc)
But the principle is sound and dang it looks suave even if the rest of the toile isn't finished yet.