So it's approx. 50% life size?
EDIT: Original is 94.5 centimetres, so if this replica is 30cm, then it's ~30% size.
I actually like the design, so it's a matter of taste. It was designed to stay lit even when subjected to winds while being carried by a runner and I think it meets that design goal pretty well. Using a different fuel could minimize the black soot, but my advice is not to light this replica.