Nice work! This is an older blog post, but it might give you a helpful rundown of some of the more confusing parameters. https://thingsunasked.blogspot.ca/200...s-by-dale.html

Probably a good way is to look in the visor for fire examples, pull one into a fresh scene and look at the parameters they've used to get the effect.

If you want specifics, try increasing the turbulence, increase the density/intensity at the base, and add some noise texture?