You have very artistic hands Johan. I doubt I will ever be able to make a wrangka.
It is fun to imagine that this keris will someday continue to travel the world, and probably 100 years from now some keris "specialist" will classify your wrangka to a certain (or probably even a pinpoint) region in Sumatra whereas it is actually from South Africa..
Since you have the skills, probably you can come up with a slightly different design of the gambar - just to get those future "specialists" scratching their heads..