I would like to build a german colonial army, using Schutztruppe troopers, the idea is something similar to these:

 Could somebody recommend me some reference?

Thanks in advance.

Would ANZACs from the Great War range work? Probably the closest you're going to get, anyway.

I would say dismounted ANZAC cavalry or Boers I'd probably go for the former

Thanks you, I am of the thought that ANZAC is the solution. I have been unplugged a lot of time, but I read that Boers were going to be redone or something like that?

I'd go for ANZACs for the Shutztruppe and CEG 1-4 for the Askaris.