I am seriously impressed. And of course the pictures make it looks so easy.
I ordered some waterproof Sunbrella fabric in a Pacific blue, which should complement the orange my VeloSoleX is getting repainted to; I'm going to make an attempt on a saddlebag myself, but of a more conventional shape. If my results are a quarter as good as yours, I'll call it a success.
The crest is a very, very nice touch.