These are some photos of the finished product! I was actually really happy with the way the overlapping French seams turned out (the third photo); they looked very neat! I did notice that I ended up trimming some of my locking stitches in the process, although I believe this is fine because the threads were sewn over again by the stitches going in the other direction.
Is this a good/useful/informative piece of content to include in the project? Have your say!